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Advances in Political Psychology, Vol. 40, Suppl. 1, 2019
doi: 10.1111/pops.12568
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0162-8 95X © 2019 The Aut hors Politica l Psychology publi shed by Wiley Perio dicals, In c. on behalf of Int ernational So ciety of Politic al Psychology
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Understanding Conspiracy Theories
Karen M. Douglas
University of Kent
Joseph E. Uscinski
University of Miami
Robbie M. Sutton
University of Kent
Aleksandra Cichocka
University of Kent
Turkay N e f e s
Oxford University
Chee Siang Ang
University of Kent
Farzin Deravi
University of Kent
Scholarly efforts to understand conspiracy theories have grown significantly in recent years, and there is now a
broad and interdisciplinary literature. In reviewing this body of work, we ask three specific questions. First,
what factors are associated with conspiracy beliefs? Our review of the literature shows that conspiracy beliefs
result from a range of psychological, political, and social factors. Next, how are conspiracy theories
communicated? Here, we explain how conspiracy theories are shared among individuals and spread through
traditional and social media platforms. Next, what are the societal risks and rewards associated with conspiracy
theories? By focusing on politics and science, we argue that conspiracy theories do more harm than good. We
conclude by suggesting several promising avenues for future research.
KEY WOR DS: communication, conspiracy belief, conspiracy theories, politics, psychology
Conspiracy theories are abundant in social and political discourse, yet a coordinated research agenda
to grapple with their causes and consequences has only developed in the last decade. It is imperative
that scholars better understand conspiracy theories for many important reasons. Across history they
have been closely linked to prejudice, witch hunts, revolutions, and genocide. Many perpetrators of
terrorist attacks were known to be keen supporters of conspiracy theories. Conspiracy theories have
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4Douglas et al.
also driven people to reject mainstream medicine to the point where once-cured diseases are now
making a comeback in some parts of the world. Also, conspiracy theories drive people to reject sci-
entific consensuses, most notably the consensus around anthropogenic climate change.
In this article, we review studies from psychology, political science, sociology, history, informa-
tion sciences, and the humanities. We consider conspiracy theories ranging in topics from science,
health, the environment, immigration, racism, terrorism, and politics to international relations. The
research we review spans a range of methodologies including content analysis of texts, discourse
analysis of political tracts and private interviews, analyses of public survey data, psychological ex-
periments, studies of personality variables, trends within individuals over time, archival studies of
societal trends, computer simulations, and automated computerized coding. We believe this effort
comprises the most comprehensive and interdisciplinary review yet of research on conspiracy theories.
We begin by defining key terms and discussing measurement. We then delineate the psycholog-
ical, demographic, and political factors that predict belief in conspiracy theories. Next, we address
the motives, mediums, and methods of communizing conspiracy theories. Then we assess the effects
of conspiracy theories, beginning with their social and political benefits and moving on to their in-
fluence on other views and actions. We conclude by highlighting some questions that remain open
for future research.
Definitions
It is first necessary to define some key terms since many arguments about conspiracy theo-
ries originate with disputes over what counts as a conspiracy theory and what does not. First, we
identify a “conspiracy” as secret plot by two or more powerful actors (Keeley, 1999; Pigden, 1995).
Conspiracies typically attempt to usurp political or economic power, violate rights, infringe upon
established agreements, withhold vital secrets, or alter bedrock institutions. This definition goes be-
yond simple criminal conspiracies, such as conspiring to rob a corner shop. Conspiracies such as the
Watergate scandal do happen, but because of the difficulties inherent in executing plans and keeping
people quiet, they tend to fail (Dai & Handley-Schachler, 2015; Grimes, 2016; Keeley, 1999; Popper,
1972). When conspiracies fail—or are otherwise exposed—the appropriate experts deem them as
having actually occurred (Levy, 2007).
“Conspiracy theories” are attempts to explain the ultimate causes of significant social and
political events and circumstances with claims of secret plots by two or more powerful actors
(Aaronovitch, 2010; Byford, 2011; Coady, 2006; Dentith & Orr, 2017; Keeley, 1999). While often
thought of as addressing governments, conspiracy theories could accuse any group perceived as
powerful and malevolent. Conspiracy theories about the 9/11 terror attacks accuse the Bush ad-
ministration, the Saudi Government, corporations, the financial industry, and the Jews; conspiracy
theories about climate change accuse scientists, communists, the United Nations, Democrats, the
government, and the oil industry among others. While a conspiracy refers to a true causal chain of
events, a conspiracy theory refers to an allegation of conspiracy that may or may not be true. For a
history of the term, see McKenzie-McHarg (2018), and for a critique of its usage, see Walker (2018).
Another term we will use throughout this review—“conspiracy belief”—refers to belief in a
specific conspiracy theory, or set of conspiracy theories. For example, about 60% of Americans con-
tinue to believe that the CIA killed President John F. Kennedy (Enders & Smallpage, 2018), and in
the run up to the 2016 European Union membership referendum in the United Kingdom, about 46%
of those intending to vote “leave” believed that the vote would be rigged (YouGov, 2016; see also
Drochon, 2018). Many of the social scientific studies on conspiracy theories focus on beliefs about
the assassination of President John F. Kennedy (McCauley & Jacques, 1979), the death of Diana,
Princess of Wales (Douglas & Sutton, 2008), 9/11 “Truther” theories (Laine & Parakkal, 2017;
Stempel, Hargrove, & Stempel, 2007), “chemtrail” conspiracy theories (Tingley & Wagner, 2018),
5
Conspiracy Theories
and theories about Barack Obama’s citizenship (Enders, Smallpage, & Lupton, in press). Other stud-
ies have looked at beliefs that are less specific about the plot but accuse groups of conspiring more
generally (Furnham, 2013; Smallpage, Enders, & Uscinski, 2017).
Another suggestion made more recently by scholars is that there may be such a thing as a ten-
dency toward “conspiracy thinking,” or a general “conspiracy mindset” (e.g., Brotherton, French,
& Pickering, 2013; Imhoff & Bruder, 2014; Moscovici, 1987; Uscinski & Parent, 2014). This idea
largely stems from the finding that people who already believe in particular conspiracy theories are
likely to believe in others (Goertzel, 1994), even unrelated ones (Wood, Douglas, & Sutton, 2012).
This may indicate an underlying tendency for some people to prefer conspiracy explanations because
of a bias against powerful disliked groups and official accounts (Wood, Douglas, & Sutton, 2012;
see also Imhoff & Lamberty, 2018). Other terms used to refer to this idea include “conspiracy predis-
positions,” “conspiracist ideation,” “conspiracy ideology,” “conspiracy mentality,” and “conspiracy
worldview.”
Finally, the term “conspiracy theorist” refers to a variety of concepts in both popular usage and
in the literature. For some, the term refers to a person who believes in a particular conspiracy the-
ory or has a strong tendency toward conspiracy thinking. It is sometimes used more specifically to
denote a person who propagates conspiracy theories professionally (e.g., Alex Jones, David Icke) or
to people who advocate strongly for a conspiracy theory, such as former Florida Atlantic University
Professor James Tracy who claims that the 2012 killings at the Sandy Hook elementary school in
Connecticut in the United States were a hoax, or Piers Corbyn—brother of UK Labour Party Leader
Jeremy Corbyn—who claims that climate science is a fraud. We avoid this term in this review in
exchange for more precise language.
It is important for scholars to define what they mean by “conspiracy theorist” and “conspiracy
theory” because—by signalling irrationality—these terms can neutralize valid concerns and dele-
gitimize people (Harambam & Aupers, 2017; McKenzie-McHarg & Fredheim, 2017; Orr & Husting,
2018; Raikka & Basham, 2018). These terms can thus be weaponized, and because of this, people
often deny that their ideas are conspiracy theories even though they clearly qualify. Politicians some-
times use these terms to deflect criticism because it turns the conversation back onto the accuser
rather than the accused (Coady, 2006; Hall & Hewitt, 1970). The exact effect the term “conspiracy
theory” and its variants have is open for debate. Some people are clearly repulsed by these terms,
while others are attracted to them (see Wood, 2016). Nonetheless, conspiracy theories are a con-
troversial subject (Bjerg & Presskorn-Thygesen, 2017; Smallpage, 2018) which can arouse passions
both in and out of academia (Cullen, 2018; Lewandowsky, 2018).
Measurement
To measure belief in conspiracy theories, scholars and polling houses often ask respondents—
through surveys—if they believe in particular conspiracy theories such as 9/11, the assassination
of JFK, or the death of Princess Diana (Cassino, 2016; Douglas & Sutton, 2008; Public Policy
Polling, 2013). For example, one item from Douglas and Sutton’s (2008) scale measuring belief
in Princess Diana conspiracy theories is “There was an official campaign by MI6 to assassinate
Princess Diana, sanctioned by elements of the establishment” where participants responded on a
scale from 1 (strongly disagree) to 5 (strongly agree). Some scholars create scales using several
questions about belief in various different conspiracy theories like those mentioned above (Miller,
Saunders, & Farhart, 2016; Oliver & Wood, 2014a) to come up with an overall measure of beliefs
in conspiracy theories. To address issues of validity across time and cultural context, Wood (2017)
devised a scale that could be adapted to specific conspiracy theories. Enders and Smallpage (2018)
examined a wide range of polling techniques pointing out the promises and pitfalls of polling about
conspiracy theories (see also studies by Berinsky, 2018 and Lopez & Hillygus, 2018).
6Douglas et al.
Other researchers (e.g., Brotherton et al., 2013; Bruder, Haffke, Neave, Nouripanah, & Imhoff,
2013; Imhoff & Bruder, 2014; Lantian, Muller, Nurra, & Douglas, 2016; Uscinski & Parent, 2014)
have devised scales to measure the general tendency toward conspiracy thinking rather than refer-
ring to specific events. For example, Brotherton et al.’s (2013) scale includes statements like “A lot
of important information is deliberately concealed from the public out of self-interest” where par-
ticipants rate the likelihood of each statement being true from 1 (definitely not true) to 5 (definitely
true). Some of these scales include as many as 15 questions and may therefore be prohibitively
costly for representative polling (i.e., Brotherton et al., 2013); other scales are significantly shorter.
For example, Lantian et al. (2016) employ one question while Uscinski and Parent (2014) use three.
One concern about all of these scales that is yet to be resolved is that all combine two elements that
may be distinct—a tendency toward believing that malevolent groups are conspiring and a tendency
to believe that official accounts are false. These two beliefs could substantively overlap, but they
could also be separate (i.e., one could believe that an official account is wrong but not believe that
malevolent groups are out to get them; see also Swami et al. [2017] for a critique of existing scales).
Furthermore, both of these measurement approaches assume that belief in conspiracy theories is
property that varies from individual to individual, but also a property that can be measured as a
dependent variable in response to experimental manipulations predicted to heighten or reduce con-
spiracy beliefs. Whether these scales are appropriate for both of these purposes also remains an open
question.
Expressions of belief can also be captured by measuring discourse. For example, Wood and
Douglas (2013) surveyed online comments made by people who both believe and disbelieve con-
spiracy theories about 9/11; Lewandowsky, Oberauer, and Gignac (2013) gathered online comments
rejecting published scientific research; Wood (2018) examined the content of Tweets; and Uscinski
and Parent (2014) examined letters to the editor of The New York Times. This approach is valuable
because it allows those engaging in the discourse to express their conspiracy beliefs, rather than
researchers choosing a set of conspiracy theories and then asking respondents if they agree with
them or not. Note that we are leaving aside from this discussion that some people spread conspiracy
theories for profit (e.g., Alex Jones), political gain (e.g., Donald Trump), or as a foreign relations tac-
tic (e.g., see Watanabe, 2018) and therefore may have a reason to transmit them other than to merely
express their true beliefs.
All of these measurement methods have their merits. For example, surveys allow large-scale
and representative data to be collected. They are also efficient to use and do not require lengthy con-
tact with respondents. They are also relatively inexpensive. On the other hand, recording discourse
avoids the problem that surveys have of occasionally capturing opinions on topics that were not
thought about before the survey and are therefore nonopinions. Recording discourse also provides
richer data on the content of respondents’ conspiracy beliefs and how these relate to the personal
experiences of respondents, which surveys cannot capture. Whichever method researchers choose,
the aim is typically to gauge the extent to which people adopt conspiracy theories. It is this question
that we turn to in the following section.
Why Do People Adopt Conspiracy Theories?
Psychological Factors
A small number of studies were published in psychology journals before 2007 (e.g., Abalakina-
Paap, Stephan, Craig, & Gregory, 1999; Butler, Koopman & Zimbardo, 1995; Goertzel, 1994;
McHoskey, 1995), but a significant research agenda did not develop until after that time (Butter &
Knight, 2018). A significant and rapidly growing body of research since then has concentrated on the
psychological factors that increase the likelihood of believing conspiracy theories.
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Conspiracy Theories
Goertzel’s (1994) study used a survey of New Jersey residents in the United States that asked
about 10 conspiracy theories. The data showed that some people believed in several while others
believed in none. As an explanation for this, Goertzel proposed that conspiracy beliefs comprise part
of a monological belief system where these beliefs comprise a self-sealing and expanding network
of ideas that mutually support each other (Goertzel, 1994). Indeed, it does appear that conspiracy
beliefs tend to “stick together”—some conspiracy beliefs tend to correlate strongly with each other.
In addition, those who believe in a conspiracy theory often turn to other conspiracy theories to ex-
plain why their pet theory has amassed no positive proof or support (Boudry & Braeckman, 2011;
Keeley, 1999).
While the monological explanation is appealing, it has limitations (see Franks, Bangerter, Bauer,
Hall, & Noort, 2017; Sutton & Douglas, 2014). Specifically, conspiracy theories are not always mu-
tually supportive and often directly contradict each other. For example, Wood et al. (2012) showed
that the positive correlation between mutually contradictory conspiracy beliefs (e.g., that Princess
Diana was murdered or that she faked her own death and is still alive) was no longer significant
when participants’ level of agreement that there was a cover-up was taken into account. Therefore,
a competing and potentially more attractive explanation is that conspiracy beliefs are only related
to each other to the extent that they cohere with a higher-order belief system. Given this, the mono-
logical account of conspiracy theories has lost traction, and the literature suggests that other psycho-
logical factors provide more compelling explanations. According to Douglas, Sutton, and Cichocka
(2017), people appear to be drawn to conspiracy theories when—compared to nonconspiracy expla-
nations—they promise to satisfy important social psychological motives that can be characterized
as epistemic (e.g., the desire for understanding, accuracy, and subjective certainty), existential (e.g.,
the desire for control and security), and social (e.g., the desire to maintain a positive image of the
self or group). Note that people do not necessarily need to be conscious of these motives. We review
each of these in turn.
Epistemic Motives
Conspiracy theories appear to provide broad, internally consistent explanations that allow peo-
ple to preserve beliefs in the face of uncertainty and contradiction. Consistent with this analysis,
research suggests that belief in conspiracy theories is stronger under conditions of uncertainty (van
Prooijen & Jostmann, 2013). Further, belief in conspiracy theories appears to be stronger when
people perceive patterns in randomness (van Prooijen, Douglas, & de Inocencio, 2018; van der
Wal, Sutton, Lange, & Braga, 2018; Whitson & Galinsky, 2008; but see Dieguez, Wagner-Egger, &
Gauvrit, 2015). Conspiracy belief is also stronger among people who consistently seek patterns and
meaning in their environment, such as believers in paranormal and supernatural phenomena (Bruder
et al., 2013; Darwin, Neave, & Holmes, 2011; Drinkwater, Dagnall, & Parker, 2012; Leiser, Duani,
& Wagner-Egger, 2017; Oliver & Wood, 2014a, 2018). It is also stronger when events are especially
large-scale or significant and when small-scale, mundane explanations therefore seem unsatisfactory
(Leman & Cinnirella, 2013). People who overestimate their ability to understand complex causal
phenomena are also prone to conspiracy beliefs (Vitriol & Marsh, 2018). Conspiracy beliefs have
also been linked to the need for cognitive closure (Marchlewska, Cichocka, & Kossowska, 2018;
Leman & Cinnirella, 2013), especially when events lack a clear official explanation. Conspiracy
beliefs have also been linked to feelings of boredom (Brotherton & Eser, 2015).
However, conspiracy theories might appear to satisfy some epistemic motives at the expense
of others. For example, conspiracy belief has been linked to the conjunction fallacy (Brotherton &
French, 2015; Dagnall, Denovon, Drinkwater, Parker, & Clough, 2017), which is an error of prob-
abilistic reasoning whereby people overestimate the likelihood of co-occurring events (Tversky &
Kahneman, 1983). Other researchers have shown that projection of one’s own personal beliefs onto
others is associated with conspiracy belief—that is, the belief that “they conspire” is in part the
8Douglas et al.
result of the belief that “I would conspire” (Douglas & Sutton, 2011). Swami, Voracek, Stieger, Tran,
and Furnham (2014; see also Ståhl & van Prooijen, 2018) found that lower levels of analytic think-
ing predicted conspiracy beliefs. Mikušková (2017) found that student teachers high in conspiracy
beliefs were more likely to score lower in rational thinking style. Douglas, Sutton, Callan, Dawtry,
and Harvey (2016) found that hypersensitive agency detection—the tendency to attribute agency
and intentionality where it does not (or is unlikely to) exist—predicts conspiracy beliefs (see also
Brotherton & French, 2015; van der Tempel & Alcock, 2015). McHoskey (1995) found that conspir-
acy beliefs may be in part a product of biased assimilation—accepting information that confirms
one’s views and scrutinizing information that disconfirms one’s views (see also Thorson, 2015).
Other cognitive processes linked to conspiracy beliefs involve a tendency to accept epistem-
ically unwarranted beliefs (Lobato, Mendoza, Sims, & Chin, 2014), a quasi-religious mentality
(Franks, Bangerter, & Bauer 2013; Wagner-Egger, Delouvee, Gauvrit, & Dieguez, 2018), and lower
levels of intelligence (Stieger, Gumhalter, Tran, Voracek, & Swami, 2013). Finally, conspiracy
beliefs have been linked to factors such as nonclinical delusional thinking (Dagnall, Drinkwater,
Parker, Denovan, & Parton, 2015) and schizotypy (Barron, Morgan, Towell, Altemeyer, & Swami,
2014; Bruder et al., 2013; Darwin et al., 2011; Swami, Pietschnig, Tran, Nader, Stiener, & Voracek,
2013; van der Tempel & Alcock, 2015). Overall, there is evidence that conspiracy theories appear
to appeal to individuals who seek accuracy and/or meaning, but perhaps lack the cognitive tools or
experience problems that prevent them from being able to find accuracy and meaning via other more
rational means.
Existential Motives
People may also turn to conspiracy theories when their existential needs are threatened, as a
way to compensate for those threatened needs (Douglas et al., 2017). For example, people who lack
agency and control may reclaim some sense of control by believing conspiracy theories because they
offer the opportunity to reject official narratives and allow people to feel that they possess a better
account. Consistent with this reasoning, studies have demonstrated that conspiracy beliefs are asso-
ciated with feelings of powerlessness (Abalakina-Paap et al., 1999; Pratt, 2003; Zarefsky, 1984/2014),
anxiety (Grzesiak-Feldman, 2013; Radnitz & Underwood, 2017), anxious attachment style (Green &
Douglas, 2018), and existential anxiety (Newheiser, Farias, & Tausch, 2011). Further, Bruder et al.
(2013) demonstrated a relationship between conspiracy thinking and low feelings of control in the
sociopolitical domain (see also Nyhan, 2017; van Prooijen and Acker 2015; Uscinski & Parent, 2014).
Conversely, experimentally strengthening people’s sense of control appears to reduce conspiracy
beliefs (van Prooijen & Acker, 2015; for another perspective, see van Elk & Lodder, 2018).
Furthermore, research demonstrates that conspiracy beliefs are correlated with alienation from
the political system and anomie—a feeling of personal unrest and lack of understanding of the
social world (e.g., Abalakina-Paap et al., 1999; Bruder et al., 2013; Goertzel, 1994; but see Nyhan
& Zeitzoff, 2018). Belief in conspiracy theories is also associated with a belief that the economy is
getting worse (Parsons, Simmons, Shinhoster, & Kilburn, 1999). Conspiracy theories may allow
people to come to terms with particular problems, enabling them to regain some of the psychological
goods that they have lost (Franks et al., 2013). In this vein, others have demonstrated that conspiracy
theories might buffer people from threats to the social system in which they live (Federico, Williams
& Vitriol, 2018; Jolley, Douglas, & Sutton, 2018).
Social Motives
People generally have the need to maintain a positive image of the self, and conspiracy theo-
ries may assist people in maintaining this positive image. For example, Cichocka, Marchlewska,
and Golec de Zavala (2016) demonstrated that the endorsement of conspiracy theories is associated
with narcissism—an exaggerated self-view accompanied by the need for external validation. Other
9
Conspiracy Theories
studies have shown links between conspiracy beliefs and the social psychological need to feel unique
to others (Imhoff & Lamberty, 2017; Lantian, Muller, Nurra, & Douglas, 2017). Perhaps conspiracy
theories allow people to feel that they are in possession of rare, important information that other
people do not have, making them feel special and thus boosting their self-esteem.
People have a strong need to feel positive about the groups they belong to as well, such as
their nationalities, political parties, and religious groups. A conviction that others conspire against
one’s group is more likely to emerge when the group thinks of itself as undervalued, underprivi-
leged, or under threat (Uscinski & Parent, 2014). For example, research by Mashuri and Zaduqisti
(2014) demonstrated that beliefs that Western people have victimized Muslims were associated with
belief in conspiracy theories suggesting that Western intelligence services instigated terrorism in
Indonesia. Bilewicz, Winiewski, Kofta, and Wojcik (2013) showed similar findings in a Polish sam-
ple with respect to conspiracy theories about Jews. Thus, conspiracy theories are linked to defensive
ways of identifying with one’s social group. This is captured by the concept of collective narcissism
(Golec de Zavala, Cichocka, Eidelson, & Jayawickreme, 2009)—a form of ingroup positivity that
reflects a belief in the ingroup’s greatness associated with a conviction that others do not acknowl-
edge the ingroup’s worth enough. Golec de Zavala and Cichocka (2012) found that national collective
narcissism in Poland predicted endorsement of conspiracy stereotypes of Jews. Golec de Zavala and
Federico (2018) found that American collective narcissism predicted conspiracy theorizing during
the 2016 US presidential campaign. Also, Cichocka, Marchlewska, Golec de Zavala, and Olechowski
(2016) demonstrated that national collective narcissism in Poland was associated with the endorse-
ment of conspiracy theories about Russian involvement in the Smolensk crash of 2010 in which the
Polish president and several officials died (see also Soral, Cichocka, Bilewicz, & Marchlewska,
2018). However, mere identification with the national group without the narcissistic component pre-
dicted lower likelihood of endorsing these conspiracy theories. This suggests that conspiracy expla-
nations of intergroup events derive from a need to validate group image by denigrating outgroups.
Thus, conspiracy theories are more likely to be prevalent among members of low-status groups
attempting to explain their status. Indeed, research shows that members of low-status social groups
are more likely to endorse conspiracy theories than members of high-status groups (Abalakina-Paap
et al., 1999; Crocker, Luhtanen, Broadnax, & Blaine, 1999; Goertzel, 1994; Uscinski & Parent,
2014). For example, Crocker et al. (1999) demonstrated that black Americans (compared to white
Americans) were more likely to believe in conspiracy theories about the American government con-
spiring against blacks.
Given their experiences, it is not completely irrational for historically disadvantaged groups to be-
lieve that dominant groups are conspiring against them (e.g., Davis, Wetherell & Henry, 2018; Thomas
& Quinn, 1991). On this point, studies have shown that people are more likely to believe in conspir-
acies directed at their own group if they personally have experienced discrimination, such as being
the victim of police harassment (Parsons et al., 1999) or racial discrimination (Simmons & Parsons,
2005). Thus, belief in outgroup conspiracies can be fueled by experiences suggesting that one’s social
group has been treated unfairly. Therefore it is important to consider the political, social, and histor-
ical contexts that make conspiracy theories seem plausible (see also Briggs, 2004; Nattrass, 2013).
Situational threats and crisis situations can also increase the likelihood of strong group attach-
ment to foster conspiracy beliefs (Kofta, Sędek, & Sławuta, 2011; Mashuri & Zaduqisti, 2014; van
Prooijen & Douglas, 2017; Thomson et al., 2012). Taken together, findings from research on the role
of social identification highlight the fact that feelings of being undermined and threatened in the
context of international relations can facilitate the development of conspiracy theories that serve to
justify groups’ disadvantaged position (Uscinski & Parent, 2014). In the end, a conviction that other
groups conspire against one’s own can help excuse the ingroup’s disadvantaged position.
To sum up, research on the psychology of conspiracy theories suggests that epistemic, exis-
tential, and social motives drive conspiracy belief. Whether or not these psychological motives are
10 Douglas et al.
satisfied by conspiracy theories is another matter, and research would suggest that they are not and
that conspiracy theories might even do more harm than good (Douglas et al., 2017). We return to this
issue later when we highlight the consequences of conspiracy theories.
Demographic Factors
Some studies have attempted to chart the social characteristics of those prone to conspiracy
theories. In the United States, Uscinski and Parent (2014) found that higher levels of conspiracy
thinking correlate with lower levels of education and lower levels of income. A recent study analyz-
ing historical survey data found further evidence of the relationships between demographic factors
and conspiracy belief (Freeman & Bentall, 2017). In this study, conspiracy believers were more
likely to be male, unmarried, less educated, have lower income, be unemployed, be a member of an
ethnic minority group, and have weaker social networks. Similar relationships were found in a large
sample of South African adolescents when surveyed about HIV/AIDS conspiracy theories (Hogg et
al., 2017).
Other investigations point in particular to the link between conspiracy belief and lower levels of
education (e.g., Bogart & Bird, 2003; Goertzel, 1994; Mancosu, Vassallo, & Vezzoni, 2017; Oliver &
Wood, 2014a). Two recent investigations have attempted to explain this relationship. Douglas et al.
(2016) demonstrated that the relationship was explained in part by the tendency for people with lower
levels of education to also be more likely to attribute agency and intentionality where it does not, or
is unlikely, to exist. Van Prooijen (2017) found support for two additional mediating factors—greater
feelings of control and a general doubt that complex problems may have simple solutions. Although
neither of these articles have established a causal link between education and conspiracy beliefs,
they suggest that education may provide people with a set of cognitive and affective attributes that
enable them to resist conspiracy theories. For example, news media literacy has been found to de-
crease conspiracy theory endorsement (Craft, Ahsley, & Maksl, 2017).
The causal relationships between conspiracy beliefs and income are also indeterminate. It could
be that employers shun those who advocate conspiracy theories or that those who advocate con-
spiracy theories shun establishment jobs that offer higher pay. For example, Uscinski and Parent
(2014) found that those with the lowest levels of conspiracy thinking were the most likely to work
in the financial industry or for government or the military. In addition, more research is needed to
understand how elite status affects conspiracy theorizing. Simmons and Parsons (2005) found that
elites and masses are equally likely to traffic in specific conspiracy theories, and Uscinski & Parent
(2014) found that elites and masses follow similar patterns with their conspiracy discourse. Nefes
(2013, 2014, 2015a, 2015b, 2017) has shown that political party members in Turkey endorse or reject
conspiracy theories based upon situational and ideological factors. With this said, insiders seem to
be the scapegoats of much conspiracy theorizing in Western societies, so it would seem obvious that
insiders would tend to reject conspiracy thinking.
Political Factors
Politics presents circumstances similar to other social conflicts: There are “winners” and “los-
ers” in highly competitive situations, one group (usually a party) is more powerful than others,
and the stakes of the conflict are real. Given the stakes, conspiracy theories arise frequently from
political events especially when those events stimulate the psychological states linked to conspiracy
beliefs, such as low political trust, feelings of powerlessness, uncertainty, and unpredictability. For
example, Einstein and Glick (2013) demonstrated that political scandals diminish trust in govern-
ment, which in turn result in higher levels of conspiracy beliefs (see also Moore, 2018). Conspiracy
beliefs can also be strengthened by exposing participants to redactions in government documents
(Nyhan et al., 2016) or to media environments in which conspiracies feature prominently in the news
(Einstein & Glick 2013; Udani, Kimball, & Fogerty, 2018; see also Weeks, 2018). Finally, conspiracy
11
Conspiracy Theories
theories can be especially potent in times of uncertainty—upcoming elections drive Americans to
fear voter fraud (Edelson, Alduncin, Krewson, Sieja, & Uscinski, 2017) and Poles to link conspiracy
theories portraying Jews as collective enemies to anti-Semitic attitudes (Kofta & Sedek, 2005). With
this said, political scientists are just beginning to examine how conspiracy theories become part of
political contests, what political factors drive conspiracy belief, and when conspiracy theories are
used as persuasive political tools (Atkinson & DeWitt, 2018; Atkinson, DeWitt, & Uscinski, 2017).
Ideology
In general, people are more likely to believe that political opposition is involved in malevolent
activity than their own party’s representatives (Claassen & Ensley, 2016; McCloskey & Chong, 1985).
In terms of accusing the opposition of fraud, Democrats are more likely to believe that Republicans
commit voter fraud to win, and Republicans are more likely to believe that Democrats do so (Cassino
& Jenkins, 2013; Karp, Nai, & Norris, 2018). Overall, these findings suggest that political opponents
are more likely to accuse each other of being involved in conspiracies, which might be a reflection
of the ingroup-outgroup mentality and be especially strong when people experience a threat to their
political faction or feel that it is being undermined in some way (Smallpage et al., 2017).
However, research demonstrates that certain political convictions are more strongly associated
with conspiracy beliefs than others (Mancuso et al., 2017). van Prooijen, Krouwel, and Pollet (2015)
demonstrated that conspiracy beliefs are most prevalent at the political extremes. They found a
quadratic effect—that is a “U-shaped” function— in both the United States and the Netherlands
suggesting that conspiracy theorizing is strongest at the far left and right, although stronger on the
right. Similar effects have been found in Sweden (Krouwel, Kutiyski, van Prooijen, Martinsson, &
Markstedt, 2017). Although it is unknown whether conspiracy theorizing may be a result of political
ideology, or vice versa, or both, this research suggests that extremist attitudes may be a consequence
of conspiracy belief. On the other hand, Uscinski and Parent (2014) and Uscinski, Klofstad, and
Atkinson (2016) suggest that levels of conspiracy thinking are stronger among those identifying as
independents or with third parties.
There exists a strong assumption both within and outside academia that there is evidence for
conservatives being more prone to conspiracy theories than liberals. Some studies support this as-
sumption (Galliford & Furnham, 2017; Miller et al., 2016). Furthermore, several studies (e.g., Bruder
et al., 2013; Grzesiak-Feldman & Irzycka, 2009; see also Richey, 2017) reported a link between con-
spiracy beliefs and right-wing authoritarianism—a dimension of political attitudes characterized by
preference for conventionalism, authoritarian aggression, and authoritarian submission to authorities
(Altemeyer, 1996). On the other hand, Oliver and Wood (2014a) and Uscinski and Parent (2014) did
not find a link between political ideology/party and conspiracy belief, and Berinsky (2012) did not
find a link between authoritarianism and conspiracy belief.
How is it possible to integrate these findings? One possibility is that although both extreme left-
and right-wingers are likely to embrace various conspiracy theories, the link is stronger at the right
side of the political spectrum, as observed by van Prooijen et al. (2015). In other words, although
both extreme left-wing and right-wing ideologies foster conspiracy convictions, right-wingers are
more predisposed to believe in conspiracy theories because they are also more likely to exhibit the
personality predispositions that foster conspiracy thinking, such as the need to manage uncertainty
(Jost, Glaser, Kruglanski, & Sulloway, 2003). It is also possible, given that much of the research to
date has been conducted on American samples during the Obama administration, that situational
factors, rather than dispositional factors, affected the discrepancy between conservatives and lib-
erals. For example, the research by Miller et al. (2016) was conducted in the United States while
conservatives were on the “losing” side at the time of the data collection. In short, the method and
timing of measurement could explain the discrepancies (Enders & Smallpage, 2018).
12 Douglas et al.
On the other hand, it may simply be the case that the bulk of the research has been conducted
by left-leaning researchers (Cardiff & Klein, 2005). There have been many studies of conspiracy
theories held by the right (going back to Hofstadter, 1964), but few studies focusing on conspiracy
theories held by the left (Douglas & Sutton, 2015). The end result is that researchers may overlook
conspiracy theories closer to home.
Motivated Reasoning
An increasing line of research shows that people with different ideologies are likely to interpret
the same information differently (e.g., Jerit & Barabas, 2012). One mechanism that can explain this
consistent finding is that of motivated reasoning (Kunda, 1990; Lodge & Taber, 2013). People resort
to motivated reasoning when they are presented with facts that contradict their predispositions, and
they will interpret new information in such a way as to not disturb their previously held worldviews.
Scholars in the American context most often observe this phenomenon in conjunction with partisan-
ship (Lodge & Taber, 2013; see Flynn, Nyhan, & Reifler, 2017 for an overview). Motivated reasoning
has frequently been observed with conspiracy theories, particularly with partisanship and political
ideology (Duran, Nicholson, & Dale, 2017; Edelson et al., 2017; Enders et al., 2018; Hartman &
Newmark, 2012; Miller et al., 2016; Nyhan, 2010; Oliver & Wood 2014a; Pasek, Stark, Krosnik, &
Tompson, 2014; Saunders, 2017; Uscinski et al., 2016; Uscinski & Parent, 2014).
However, just as people filter events and circumstances through the lens of their underlying
political predispositions (i.e., partisanship, political ideology; Berinsky, 2007, 2009; Campbell
Converse, Miller, & Stokes, 1960; Zaller, 1992) they also interpret information through the lens of
their underlying view about the role of conspiracies in political events (e.g., Brotherton et al., 2013).
In a survey experiment in which researchers attempted to convince Americans of a media conspir-
acy, Uscinski et al. (2016) showed that only nonpartisans who scored high on a measure of con-
spiracy thinking were affected by information suggesting a conspiracy because Republicans were
already likely to believe that the media was conspiring against them, and Democrats were already
likely to not believe this. This holds with predispositions outside politics. New Age believers are
more likely to believe Da Vinci Code conspiracy theories than are Catholics (Newheiser et al., 2011),
and sports fans are more likely to believe that other teams engage in shenanigans rather than their
favorites (Carey, Nyhan, Valentino, & Liu, 2016). The literature strongly suggests that conspiracy
theories must align with a person’s existing set of predispositions to be adopted.
Are Conspiracy Theories for Losers?
Situational factors, such as being on the losing end of a power asymmetry, could lead to in-
creased belief in conspiracy theories (Uscinski & Parent, 2014). Uscinski and Parent (2014) argue
that conspiracy theories are for “losers” and tend to accuse those in power and their coalitions.
Examining letters to the editor of the New York Times spanning 1890–2010, they found that when
a Republican was president, the resonant conspiracy theories tended to accuse Republicans and big
business of conspiring, but when a Democrat was in office, the conspiracy theories tended to accuse
Democrats and socialists of conspiring. They also found that during declared wars and the Cold War
conspiracy theories focused on foreign enemies more than during other times. Edelson et al. (2017)
found that electoral losers were more likely than winners to believe that fraud had occurred (see also
Nyhan, 2017). To Uscinski and Parent (2014, Chap. 6), these findings indicate that:
[The] targets and timing of resonant conspiracy theories follow a strategic logic, based on for-
eign threat and domestic power. In this way, conspiracy theories are used by vulnerable groups
to manage perceived dangers: they are early warning systems that keep watch over the most sen-
sitive areas and prepare solutions to potential attacks. At bottom, conspiracy theories are a form
13
Conspiracy Theories
of threat perception, and fears are fundamentally driven by shifts in relative power. Because
defeat and exclusion are their biggest inducements, conspiracy theories are for losers. (p. 131)
One assumption of the “losers” idea is that conspiracy theories communicate information to generate
collective action in the face of threat. To test this, Smallpage et al. (2017) asked an Mturk sample in
the United States to match a series of partisan and nonpartisan conspiracy theories to the party most
associated with each one. They found that partisans—even those who did not believe in the con-
spiracy theories themselves—correctly matched which conspiracy theories were “owned” by which
party. They concluded that conspiracy theories function like calling cards sending clear signals to
copartisans. By doing this, conspiracy theories could generate collective action. With this said, more
work needs to investigate the effect of conspiracy theories on collective political actions such as
voting (e.g., Atkinson & DeWitt, 2018; Swami, Barron, Weis, & Furnham, 2018).
How Are Conspiracy Theories Communicated?
The communication of conspiracy theories is of vital interest to anyone who wants to under-
stand how they are spread, become established, and affect individuals, groups, society, and politics.
In this section, we discuss why people communicate conspiracy theories, the media they use, and the
ways in which they communicate those theories.
Motives to Communicate Conspiracy Theories
One of the challenges in studying the motives to communicate conspiracy theories is to tease
these apart from motives to believe in conspiracy theories. While the psychological, social, and
political factors that cause people to believe in conspiracy theories are almost guaranteed to shape
the communication of conspiracy theories, much of the research seems to overlook any divergence.
This is a difficult enterprise and as much as possible, we shall concentrate on research that focuses
specifically on communication per se.
Nefes (2017) underlines that important social events, such as big-scale protests, lead to the
prevalence of conspiracy talk. In Taiwan, after an assassination attempt on the Taiwanese President
Chen Shui-bian in 2004 one day before the general election, conspiracy theories about the event
were ubiquitous (Nefes, 2014). To understand the communication pattern of these accounts, Nefes
conducted an online content analysis of people’s comments on the assassination attempt. Perceptions
of threat were associated with greater expressions of conspiracy theories, and people proposed con-
spiracy theories in line with their political arguments. Nefes (2013, 2015a, 2015b) uncovered similar
findings in an analysis of the communication of anti-Semitic conspiracy rhetoric in Turkey. Further,
using both quantitative and qualitative content analysis, Nefes (2017) analyzed the relationship be-
tween people’s political views and online responses to the Turkish government’s conspiracy rhetoric
about the Gezi Park protests in 2013. The findings illustrated that people’s political views predicted
their acceptance or rejection of the conspiracy rhetoric. Conspiracy theories therefore appear to be
communicated about events that are perceived to be important and relevant to people’s political in-
terests. In a similar vein, Raab, Ortlieb, Auer, Gunthmann, and Carbon (2013) argue that conspiracy
theories could be viewed as a way of constructing and communicating a personal set of values and
moral feelings, and Klein, Clutton, and Dunn (2018) show that anger is a precursor to the sharing of
conspiracy theories.
A distinct psychological motivation, with a more social and political flavor, was identified by
Franks et al. (2013). They argued that conspiracy theories spread as devices for making sense of
events that threaten existing worldviews. They draw on social representations theory (Moscovici,
1961) to argue that conspiracy theories help groups to symbolically cope with threatening events
by making abstract risk more concrete and by focusing blame on a set of conspirators. Franks and
14 Douglas et al.
colleagues (2013) argue that the spread of conspiracy theories therefore allows people to challenge
abstract expert-dominated discourses about important events. They further propose that conspiracy
theories are communicated as devices to cope with collective trauma.
In a more political vein, Sapountzis and Condor (2013) argue that conspiracy narratives are
used to dispute dominant political and ideological assumptions (see also Uscinski, 2018). A sample
of Greek political party members were asked a series of questions in an interview. In the interviews,
participants were encouraged to talk freely with occasional prompts concerning conflicts in the
Balkans. Results revealed that conspiracy narratives were typically used to challenge assumptions
concerning Greece’s majority status, suggesting that conspiracy theorizing may therefore be used as
a way to construct causal arguments about intergroup relations and to dispute dominant ideological
assumptions about political legitimacy and social hierarchy (see also Gosa, 2011). Also, parents may
use conspiracy theories to explain difficult events to their children, such as when their group has
been marked out as responsible for a terrorist attack (Jamil & Rousseau, 2011).
Studies of political messages advocating conspiracy theories about the Islamization of the
United Kingdom (and Europe and the West more generally) articulate the political purposes for
which conspiracy theories are used. Wood and Finlay (2008) conducted a discourse analysis of arti-
cles written by prominent members of the British National Party in the months following the London
7/7 bombings. They found that these articles promoted conspiracy theories about the intentions of
Muslim immigrants to the United Kingdom. By casting even moderates as part of a conspiracy, the
rhetoric is used to represent all Muslims as a potent threat to civic life and to justify radical, exclu-
sionary politics—in this case the mass, forced deportation of Muslims. Lee (2017) found that pub-
lished statements by prominent figures in the so called “counter jihad” movement, which casts itself
as the unofficial opposition to the Islamization of the West, seldom use conspiracy theories explicitly
to justify extremist political action. Rather, they use conspiracy theories to create the ideological
conditions for extremism and political violence. These include fear of Muslims and radical distrust
of political leaders and institutions which are represented either complicit with Islamists or their
dupes—beliefs that inspired Anders Breivik’s massacre of left-wing youth in Oslo (Fekete, 2012).
Leaving aside the advocacy of particular political objectives, Allen (2016) suggests another
important communicative motivation for conspiracy theories. Allen examined the conspiracy the-
orizing by rival Palestinian political factions in the occupied West Bank (i.e., Fatah and Hamas).
In an analysis of political advertising, Allen suggests that conspiracist representations of each side
reflect an underlying “semantic ideology” that communication, even in politics, should be sincere.
The carefully crafted, hedged, and often evasive quality of conventional political discourse (Bhatia,
2006; Clementson, 2016; Mearsheimer, 2011) may strike contemporary audiences as evidence that
politicians are concealing secret agendas.
The Internet and Social Media
There has been much concern about how specific communication media—most notably the
Internet—may promote the spread of conspiracy theories (Southwell, Thorson, & Sheble, 2018).
While there is some suggestion that conspiracy theories may be flourishing in the age of the Internet
(Morello, 2004), others suggest that it is not that straightforward (Uscinski, Atkinson, & DeWitt,
2018; Klein, Clutton, & Polito, 2018).
Clarke (2007) argued that while the Internet may facilitate the rapid spread of more conspir-
acy theories, this does not mean that it also helps the development of the conspiracy theories. The
speed of dissemination may even retard the progress of conspiracy theories into coherent arguments.
Clarke further argues that the Internet may be responsible for limiting conspiracy theories since
billions of potentially critical voices are available to immediately refute conspiracy claims with
evidence.
15
Conspiracy Theories
Uscinski et al. (2018) argue that for several reasons, the Internet may not necessarily be as big
a boon to conspiracy theories as many think. First, in Western countries, websites with the most
traffic are not devoted to conspiracy theories, and conspiracy theory websites are not highly vis-
ited. Mainstream sources of news far outpace conspiracy sources in terms of reach and audience
(Vosoughi, Roy, & Aral, 2018). There are many websites dedicated to conspiracy theories, but it
is likely that the only people seeking out these websites are those who are already predisposed.
Second, in terms of the online information environment, Uscinski and Parent (2014) examined news
and blog posts over the course of a year to see how the Internet discusses conspiracy theories. Much
of the content was negative, suggesting that if one were to simply seek out news from the Internet,
one would get a negative vision of conspiracy theories. Third, there is no evidence that people are
more prone to conspiracy thinking now than they were prior to the invention of the Internet. Thus, it
cannot be asserted that there has been an overall rise in conspiracy theorizing or that the Internet is
responsible for such a rise in a straightforward way.
Finally, Uscinski et al. (2018) argue that conspiracy theories do spread on the Internet, but rarely
in the ways popularly assumed. Conspiracy theories do not bounce indiscriminately from person to
person through social media as is often assumed (DeWitt, Atkinson, & Wegner, 2018). Instead they
tend to stay concentrated within the communities who already agree with them (Metaxas & Finn,
2017; Sunstein & Vermeule, 2009). Nonetheless, research points to the crucial role of the Internet in
fostering distinct and polarized online communities (e.g., Bessi et al., 2015).
The polarization of communities on the Internet is crucial to understanding the dynamics of
conspiracy communication. Highlighting the difficulties of rational and civil communication be-
tween polarized communities, Zollo et al. (2015) found that the sentiment of users’ comments and
posts became more negative as they became more active, and that the sentiment of communication
threads between communities was especially negative, and became more negative as conversation
threads persisted (see also Bessi, Zollo, Del Vicaro, Scala, Caldarelli, & Quattrociocchi, 2015; Del
Vicaro et al., 2016). Communication within conspiracy communities may be more civil but not
necessarily more rational. Bessi et al. (2015) examined reactions to posts that deliberately parody
conspiracy information. They found that approximately 80% of the comments and likes on these
posts were from conspiracy users. This indicates that conspiracy users are uncritically distributing
and endorsing even deliberately false, highly implausible material (see also Bessi, Caldarelli, Del
Vicario, Scala, & Quattrociocchi, 2014).
Arts and Media
The Internet is far from the only medium in which conspiracy theories are aired. Mainstream
news media expose people to conspiracy theories on a regular basis (Stempel et al., 2007; Stieger
et al., 2013). Other media include film, in which there is a recognized genre known as “conspiracy
cinema” (Dorfman, 1980; Jameson, 1992), and television (Arnold, 2008; Letort, 2017). Exposure to
conspiracy theories in these mediums increases receptivity to conspiracy theories (e.g., Butler et al.,
1995; Mulligan & Habel, 2013; Robertson, 2015) and is entertaining for those who already believe
in conspiracy theories (Nera, Pantazi, & Klein, 2018).
Conspiracy theories can also be communicated through music. Popular bands like Muse are
known for alluding to conspiracy theories in their lyrics (Ward & Voas, 2011). More fringe genres,
like White Power music, postulate that whites are being undermined by internationalist conspiracies
(Corte & Edwards, 2008). White power musicians see themselves as victims and attempt to explain
their own lack of success as the result of multicultural conspiracies (see also Johnson [2018] on the
radicalization of white men with conspiracy theories).
Gosa (2011) studied the role of hip-hop in conspiracy theorizing, particularly as a way to explain
and mobilize action against the perpetual disadvantages experienced by blacks in the United States
and across the globe. Gosa demonstrated that conspiracy theories are advanced at three levels—in
16 Douglas et al.
the musical lyrics themselves, in interview statements by prominent hip-hop artists that are repro-
duced on TV, radio, magazines, and academic books, and in ongoing interactions between hip-hop
artists and their fans (e.g., in concerts and on blogs). Tellingly, indicating the cross-fertilisation of
fiction, arts, and politics, the conspiracy theories uncovered by Gosa are influenced by books and
films including the Da Vinci Code and “V” (which, before Icke, 2001, portrayed a world in which
the world is ruled by shape-shifting lizards in human form). Thus, prominent artists including Jay-Z
and Kanye West are held to belong to a “Hip Hop Illuminati,” who “in exchange for record sales and
stardom… agree to poison the minds of the black masses” (p. 194).
Styles of Communicating Conspiracy Theories
Thus far, we have considered why and where conspiracy messages are communicated. Next, we
consider the communicative, linguistic, and persuasive devices employed by those communicating
conspiracy theories.
Some emerging research has examined the communication of conspiracy theories about vac-
cines on social media (Dredze, Broniatowski, & Hilyard, 2016; Safford, Hamilton, & Whitmore,
2017; Sharma, Yadav, Yadav, & Ferdinand, 2017). For example, Grant et al. (2015) examined the
content of two provaccination and two “vaccine-skeptical” websites to examine what might make
antivaccination communication tactics successful. They found that vaccine-skeptical sites had links
to both pro- and antivaccination material, creating the impression that both sides of the argument
were being presented openly. In addition, the vaccine-skeptical sites were highly interactive, with
spaces for community discussion, and oriented towards the creation of people affected (or think they
are affected) by vaccination. The authors argue that vaccine-skeptical websites are more effective
in fostering community building to achieve their ends. In contrast authoritative provaccination sites
offer limited interactivity and focus on imparting evidence-based knowledge. Unfortunately, this
format may fuel the conspiracist view of elites as aloof and dictatorial (see also Kata, 2010; Moran,
Lucas, Everhart, Morgan, & Prickett, 2016).
Other lines of research also suggest that advocates of conspiracy theories are careful to appear
rational and open-minded. A content analytical study by Wood and Douglas (2013) examined the
comments made by 9/11 Truthers and their opponents on a large sample of comments from four
mainstream news sites in 2011. The majority of the comments were from a conspiracist position,
again suggesting that conspiracy advocates are disproportionately active in sharing and dissemi-
nating their views online. More interestingly, the conspiracist and conventionalist comments used
different communication techniques—specifically that conspiracist arguments showed a tendency
to spend more time arguing against the official explanation of 9/11 rather than offering any alterna-
tives. Anticonspiracy rationalists, on the other hand, showed the opposite pattern, advocating their
own “official” explanation more than arguing against the conspiracy position. They also used a more
hostile tone (see also Golo & Galam, 2015) which may contribute to the sense, among conspiracy
theory believers, that they comprise a bullied, principled minority whose opponents are using ortho-
dox levers of power and authority to cow them.
Further insights into how conspiracy theories are communicated online have been yielded by
text-based analysis. This methodology analyzes the frequency of individual words that have been
categorized by expert raters (e.g., as emotion words, analytic words, as indicative of authenticity).
Faasse, Chatman, and Martin (2016) applied this technique to 1,500 comments on a provaccination
Facebook post by Mark Zuckerburg. The analysis revealed that antivaccination and provaccination
comments tend to use different kinds of language. Antivaccination posts used more analytical, but
less authentic, less anxious, and less tentative language. These findings suggest that online oppo-
nents, compared to proponents of vaccines, use more authoritative, confident, assured, and manip-
ulative language.
17
Conspiracy Theories
To sum up, research suggests that people recruit conspiracy theories largely to justify their own
political positions, and they do this even when their political leanings are radical or exclusionary.
The Internet and social media are useful in these efforts but the conspiracy theories may not reach
their potential impact because people tend to consume information from their own “bubbles” and
dismiss what is not relevant to them personally. Scholars should make efforts to integrate studies
of the communication of conspiracy theories with studies that look at the psychological and other
factors that drive individuals’ beliefs.
What Are the Consequences of Conspiracy Theories?
Beliefs can drive actions, therefore in this section, we examine the potential consequences of
conspiracy theories.
Potential Benefits of Conspiracy Theories
First, conspiracy theories may allow individuals to question or challenge dominance hierarchies
and query the actions of powerful groups. One positive consequence of these challenges could be
that governments are encouraged to be more transparent (e.g., Clarke, 2002; Swami & Coles, 2010).
Conspiracy theories can also reveal inconsistencies in government or official versions of events (e.g.,
Clarke, 2002; Olmstead, 2009), may open up issues for discussion that would otherwise be closed
(Miller, 2002), and may even uncover real conspiracies (Swami & Coles, 2010).
Various scholars view conspiracy theories as results of people’s and groups’ attempts to under-
stand social and political reality (Radnitz & Underwood, 2017). For example, Knight (2001) under-
stands conspiracy theories as symptoms rather than causes of social dysfunction and proposes that
conspiracy theories could be seen as a part of a class-based alienation from contemporary neo-liber-
alism (see also Knight, 2002, 2008). Spark (2001) agrees and accepts conspiracy theories as a part of
the mainstream culture and that they voice the discontent in contemporary politics. Further, Jameson
(1992) claims that conspiracy theories function as cognitive maps for people to comprehend social
and political realities. Others go further arguing that since elites do engage in conspiracy, conspiracy
theories are a crucial instrument for holding authorities accountable (Basham, 2003; Dentith, 2016a,
2016b; Dentith & Orr, 2017). Singh (2016) argues that globalization has resulted in the increasing
power of informally rather than formally networked elites, meaning that conspiracist understandings
of the world order may increasingly reflect political realities.
Conspiracy theories may have some benefits, so we would caution against a demonization of
conspiracy theories and the people who believe and communicate them. Some conspiracy theories
may raise issues in society that need to be addressed. Indeed, it is possible to view conspiracy theo-
ries as an important ingredient of democratic discourse (Moore, 2016a, 2016b). However, as we will
review in the following section, conspiracy theories have been predominantly linked to harmful so-
cial, health, and political consequences. It is also debatable whether or not conspiracy theories meet
the psychological needs that people adopt them for (Douglas et al., 2017).
Attitude Effects
One of the first investigations of the effects of conspiracy theories demonstrated that they
change people’s attitudes. Butler et al. (1995) surveyed American adults at a cinema screening the
Oliver Stone film JFK, which presented a conspiracy hypothesis about the assassination of President
John F. Kennedy. Half of the participants were surveyed before seeing the film, and half were sur-
veyed afterwards. It was found that the film significantly influenced endorsement of the conspirato-
rial narrative. Those who had viewed the film were more strongly in favor of the idea of conspiracy
than those who had not yet seen it. A similar investigation by Mulligan and Habel (2013) found that
participants who had watched the outlandish conspiracy film Wag the Dog, about how a government
18 Douglas et al.
stages a fake war in a Hollywood studio, were more likely to respond positively to statements such
as “How likely is it that a US president will stage a fake war in the future?” than those who had not
watched the film. Douglas and Sutton (2008) corroborated these findings with respect to conspiracy
theories about the death of Diana, Princess of Wales. They further investigated whether people were
aware that their attitudes had changed as a result of exposure to conspiracy theories, finding that
they were not.
Research also suggests that conspiracy theories can influence political attitudes. However, this
may depend on people’s existing predispositions. Uscinski et al. (2016) embedded the word “con-
spiracy” within a survey about media coverage during the 2012 U.S. presidential election for half of
the participants, and half did not receive this cue. The inclusion of the conspiracy only influenced
people who scored high in conspiracy thinking. Conspiracy theories may therefore influence peo-
ple’s attitudes, but the level of influence appears to depend on preexisting attitudes and possibly
other factors that remain to be investigated. What effects might they have on social and political
behavioral intentions?
Prejudice
Conspiracy theories have been linked to negative attitudes about groups. For example, Swami
(2012) asked a sample of Malaysian participants to complete a scale of conspiracy belief, a scale spe-
cifically concerning anti-Jewish conspiracy theories (e.g., “Jews are attempting to establish a secret
world government”) and various ideological attitudes. It was found that belief in Jewish conspiracy
theories was associated with anti-Israeli attitudes and also racism toward Chinese people. Further,
Golec de Zavala and Cichocka (2012) found in a Polish sample that belief in specific conspiracy
theories about Jewish domination of the world (e.g., Kofta & Sędek, 2005) were associated with
more general anti-Semitic attitudes. In a Polish representative sample, Bilewicz et al. (2013) found
that belief in the Jewish conspiracy was a better predictor of anti-Semitic behavioral intentions (e.g.,
legal discriminatory intentions against Jews; social distance toward Jews) than traditional anti-Sem-
itism. Further, Imhoff and Bruder (2014) found that among a U.S. sample, a tendency toward con-
spiracy theorizing was associated with prejudice against a variety of high-power groups (e.g., Jews,
Americans and capitalists). Finally, in a sample of white Americans, reports of negative contact with
African Americans was associated with expressed doubts about Barack Obama’s American citizen-
ship and eligibility to be president (Barlow et al., 2012).
This research suggests that in some cases, conspiracy theorizing may be associated with preju-
dice toward particular groups (Pasek et al., 2014). In further support of this idea, Rousseau and Jamil
(2008) conducted ethnographic research among Pakistani immigrants in Canada and Pakistani resi-
dents of Karachi about the events surrounding the 9/11 attacks. Respondents in both countries over-
whelmingly supported the conspiracy theory that the United States orchestrated the attacks and that
therefore Muslims were not responsible. Conspiracy beliefs might therefore appear to reinforce the
“us” versus “them” dichotomy. By questioning the official explanation, minority groups—and not
just majority groups—could potentially reinforce differences between groups.
Health-Related Choices
Several correlational studies have shown that belief in health-related conspiracy theories is as-
sociated with the choice to use contraception and practice safe sex. Specifically, one conspiracy
theory alleges that birth control is a form of genocide against Africans and African Americans (see
Ball, 2016; Ford, Wallace, Newman, Lee, & William, 2013). This conspiracy theory is believed
widely in both the United States and South Africa (Hogg et al., 2017; Nattrass, 2013). Thorburn and
Bogart (2005) found that belief in this conspiracy theory among African Americans was positively
associated with negative attitudes toward contraceptive methods and less use of contraceptive meth-
ods. Another study, also testing an African-American sample, found that conspiracy beliefs and
19
Conspiracy Theories
perceived discrimination against the group both predicted contraceptive behavior (Bogart & Bird,
2003; see also Bogart & Thorburn, 2005; Bogart, Wagner, Galvam, & Banks, 2010; Bogart, Galvan,
Wagner, & Klein, 2010; Hoyt et al., 2012). In similar work conducted in South Africa, Grebe and
Nattrass (2012) found that the odds of using condoms were halved among female African AIDS
conspiracy believers.
Oliver and Wood (2014b) demonstrated a strong relationship between medical conspiracy beliefs
and people’s health choices. People who endorsed medical conspiracy theories (e.g., “Health officials
know that cell phones cause cancer but are doing nothing to stop it because large corporations won’t
let them”) were less likely to engage with medical professionals, were more likely to trust medical
advice alternative sources, and were more likely to choose unconventional medicines. Observations
from medical professionals (e.g., Chung, 2009) suggest that conspiracy theories, mistrust of medial
authority, and nonexpert celebrities are associated with vaccine refusal among parents.
One challenge of all of this research is that it is correlational. It is therefore impossible to de-
termine the direction of causality. For example, conspiracy beliefs might drive vaccine refusal, or
vaccine refusal may fuel conspiracy beliefs. However, Jolley and Douglas (2014a) provided exper-
imental evidence of the potentially negative effects of antivaccine conspiracy theories on vaccine
intentions. Participants were presented with common antivaccine conspiracy theories, arguments
against the conspiracy theories, or no information (control). Findings showed that participants who
had been exposed to conspiracy theories were reluctant to vaccinate compared to the other two
conditions. Other researchers used focus groups and interviews to understand why some Romanian
parents refuse to put their daughters forward for the HPV vaccination (Craciun & Baban, 2012). It
was found that two of the key reasons for not vaccinating were the perception that the vaccine is an
attempt to reduce the world’s population, and the perception that it is an experiment to allow phar-
maceutical companies to make large profits (see also a field study of Pakistani parents by Khan &
Sa h ibz a d a, 2016).
Science Denial
Goertzel (2010) ties ideology and political commitments to conspiracy theories about science,
including HIV/AIDS conspiracy theories, Genetically Modified Food (GMO) conspiracy theories,
“anti-vax” conspiracy theories, and climate change conspiracy theories (see also Weigmann, 2018).
One recent survey showed that over a third of Americans agree that global warming is a hoax
(Public Policy Polling, 2013), making climate skepticism very much a mainstream belief. In general,
climate skeptics argue that climate change either is not occurring, or at least that humans are not
the cause. More extreme climate skeptics assert that climate scientists are involved in data faking
and fraud so that they ensure that they keep receiving research funding. In the United Kingdom, the
“climategate” scandal concerning climate scientists at the University of East Anglia demonstrates
the importance of beliefs about climate change and the lengths that people are prepared to go to (e.g.,
hacking emails) to attempt to discredit climate science. These conspiracy theories continue to res-
onate long after the claims were discredited (Anderegg & Goldsmith, 2014; Bricker, 2013; Jacques
& Connolly-Knox, 2016; McCright & Dunlap, 2011). There is ample evidence that conspiracy the-
orizing about climate change goes hand in hand with conspiracy thinking and science denial more
generally (e.g., Lahrach & Furnham, 2017; Lewandowsky, Cook, Oberauer, Brophy, & Marriott,
2015; Lewandowsky, Oberauer, et al., 2013; Lewandowsky, Gignac, & Oberauer, 2013; Uscinski,
Douglas, & Lewandowsky, 2017; Uscinski and Olivella, 2017, see also Rutjens, Heine, Sutton, & van
Harreveld, 2017).
Some experimental research suggests that climate change conspiracy theories influence peo-
ple’s environmental intentions. Jolley and Douglas (2014b) exposed a sample of British undergrad-
uate students to a narrative about climate change conspiracy theories (e.g., that climate change is a
hoax designed by climate scientists to obtain research funding), arguments refuting the conspiracy
20 Douglas et al.
narrative, or no arguments (control). Participants who had been exposed to the conspiracy narrative
showed lower intentions to engage in the climate friendly behaviors. Although this research has not
used behavioral dependent measures (e.g., whether people actively reduce their carbon footprint), it
suggests that conspiracy theories at least inform what people intend to do on important matters such
as climate change and vaccination as discussed earlier (see also van der Linden [2015] for similar
findings).
It should be noted, however, that not all climate change conspiracy theories are antiscience. In
fact, some of these conspiracy theories side with scientists against alleged governmental and cor-
porate interference. Douglas and Sutton (2015) examined conspiracy theories on both “sides” of the
climate debate and argued that some of the more debatably left-wing conspiracy theories are very
much in favor of the scientific consensus, arguing that scientific evidence is being hidden or at least
watered down. Specifically, some environmental groups suggest that solid, scientific information
about climate change is being deliberately hidden for political reasons, as when information was
omitted from the 2014 IPCC report about China’s gas emissions. Other conspiracy theories cite
support for the idea that large corporations with interests in the fossil fuel industry are suppressing
climate science findings. Such conspiracy theories receive much less airtime than the right-wing
antiscience versions, and their consequences are therefore unexplored.
Political Engagement
Conspiracy theories have also been linked to political attitudes and behaviors. Jolley and
Douglas (2014b) found that participants who were exposed to antigovernment conspiracy theories—
compared to those who were presented with refuting information— showed less intention to vote in
the next election. Another negative outcome is decreased political trust. Einstein and Glick (2013)
exposed participants to conspiracy claims, or a narrative disputing such claims. Exposure to the con-
spiracy theories negatively affected trust in government and institutions, even when the institutions
were not connected to the allegations (see also Kim & Cao, 2016). Further, Butler et al. (1995) found
that participants who had viewed the conspiracy film JFK showed lower intentions to engage in the
political process by voting or making political contributions. Uscinski and Parent (2014) also showed
that people higher in conspiracy thinking were less likely to register to vote, to actually go out and
vote, to donate money to candidate, or to put up political signs at their homes.
In different contexts however, conspiracy theories may be associated with intentions to engage
in political action against elites. Imhoff and Bruder (2014) examined conspiracy thinking and inten-
tions to act in support of a nuclear phase-out following the Fukushima nuclear power plant disaster
in 2011, by showing an intention to engage in protests. Among a sample of German respondents,
conspiracy thinking was significantly and positively associated with the intention to engage in polit-
ical actions in support of a nuclear phase-out. Although these findings are correlational, they suggest
that conspiracy theorizing may sometimes trigger behaviors aimed at challenging the status quo
and those in power (Atkinson et al., 2017; see also Chayinska & Minescu, 2018; Franks et al., 2013).
Violence, Radicalization and Extremism
Conspiracy theories may be associated with increased radicalized and extremist behavior.
Bartlett and Miller (2010) analyzed the content of a broad range of extremist groups and found
that conspiracy theories are not only prevalent throughout, but that there is a great deal of overlap
between the conspiracy theories mentioned, even across extremist groups at opposite ends of the po-
litical spectrum. This evidence is consistent with van Prooijen et al.’s (2015) analysis. For instance,
they found that anti-Jewish capitalist conspiracy theories were features of both right- and left-wing
extremist groups. Bartlett and Miller argued that conspiracy theories play important social and func-
tional roles for extremist groups. Specifically, they may be a “radicalizing multiplier” (p. 4) that
contributes and reinforces the ideologies and psychological processes within the group.
21
Conspiracy Theories
More generally, conspiracy belief has been linked to violent intentions. Uscinski and Parent (2014)
conducted a nationally representative survey in the United States in which they separated participants
who were high and low in conspiracy thinking. Results showed that those who were more generally in-
clined toward conspiracy theories were more likely to agree that “violence is sometimes an acceptable
way to express disagreement with the government” than those less inclined. Those inclined toward
conspiracy belief are also in favor of lax gun ownership laws (Uscinski & Parent, 2014), show a will-
ingness to conspire themselves (Douglas & Sutton, 2011), and show greater intentions to engage in ev-
eryday crime (Jolley, Douglas, Leite, & Schrader, in press). Again, we must caution that findings from
correlational research do not imply causality (but see Jolley et al., [in press] for experimental findings).
Sadly, however, the world is all too familiar with cases of people who have committed violence on the
basis of conspiracy ideas (e.g., Timothy McVeigh, Anders Breivik) and of governments committing
violence based on conspiracy theories and propaganda (e.g., Nazi Germany, Stalin’s Russia).
Workplace Engagement
DiFonzo, Bordia, and Rosnow (1994) discuss the detrimental consequences of “questionable
information” such as rumors, in the workplace. They argue that despite appearing to be trivial no-
tions shared around the water fountain, rumors can drain productivity, create stress in the workplace,
reduce profits, and denigrate a company’s image. Although rumors and conspiracy theories differ
in one crucial element—rumors do not necessarily imply the collusion of individuals and groups—
some important parallels can be drawn. For example, both can reduce trust in authorities, both more
often than not lack proof, and both are often relied upon when reliable information is not available
or endorsed in particular under conditions of some uncertainty.
Douglas and Leite (2017) carried out an experimental investigation of the effects of conspiracy
theorizing in the workplace. Participants who were asked to imagine a conspiratorial workplace
were more likely want to leave that workplace than those in a control condition. This effect was
driven by lower feelings of commitment and lower job satisfaction (see also van Prooijen and de
Vries [2016] for similar findings). Sharing suspicions around the water fountain might therefore be
damaging to the workplace.
Future Directions
The current research on conspiracy theories is broad and interdisciplinary, and as such, we
believe we have a unique opportunity to consider what, from here, are the key directions that future
research should take.
First, we argue that some methodological issues need to be addressed. Specifically, to be more
confident in the power of research findings, we would recommend the use of larger, more represen-
tative samples. While the use of student populations and crowdsourced samples may be convenient
and inexpensive, these samples do not provide an overall picture of conspiracy beliefs among the
general population, nor are they able to tell us how different groups in society are likely to embrace
conspiracy theories compared to others. Field experiments could also add value to the literature.
Studying conspiracy beliefs in specific contexts and at specific points in time can give a detailed ac-
count of the factors that determine those beliefs and what effects they may have. Furthermore, since
much of the literature to date has been correlational, future efforts must focus on experimental and
longitudinal research designs to examine the causes and effects of conspiracy theories more directly.
Next, there are several different measures of conspiracy beliefs and conspiracy thinking, but
no one accepted measure (see Swami et al., 2017). Although scales correlate very highly with each
other, the literature could benefit from more standardized measurement as exists in other research
areas. Further, more work must examine how these scales translate across geographic context, par-
ticularly into closed societies where the conspiracy theories about government are likely to be more
22 Douglas et al.
rational. The study of conspiracy theories is beginning to traverse geographic boundaries; for ex-
ample, see works on Turkey (Nefes, 2015b), Russia (Yablokov, 2018), Europe (Drochon, 2018), the
Middle East (Nyhan & Zeitzoff, 2018; Siddiqui, in press), Latin America (Filer, 2018), and Thailand
(Greenhill & Oppenheim, 2017). Studies should begin integrating these various findings to develop
broader theories.
Also, it is important to note that the majority of studies examining beliefs in conspiracy theo-
ries have relied on self-report survey measures. These measures raise the possibility of expressive
responding—endorsing ideas to express opposition to policies and politicians rather than reflecting
genuine beliefs (e.g., Bullock, Gerber, Hill, & Huber, 2015). Some scholars argue that responses to
political statements are rife with expressive responding and that participants’ responses can there-
fore not be relied upon as their true beliefs (Prior, Sood, & Khanna, 2015). Other scholars, however,
have found no evidence for expressive responding and argue that survey responses therefore serve
as a “window into the underlying beliefs and true preferences of the mass public” (Berinsky, 2018,
p. 211). This is an important issue to consider in the case of political conspiracy theories, and re-
searchers should consider additional alternative methods (e.g., interviews, discourse analysis) to tap
into these beliefs. However, it is also important to note that not all conspiracy theories are po-
litical, and therefore expressive responding is unlikely to be a significant concern in all studies.
Nevertheless, this is an important issue to consider in future research.
Further, although research has uncovered many personality, social, and political factors that con-
tribute to conspiracy belief, some important controversies have emerged and some lines of research
are yet to yield conclusive answers. For instance, some research has demonstrated a relationship be-
tween pattern perception and belief in conspiracy theories (van Prooijen et al., 2018; van der Wal et al.,
2018), but other studies have found no relationship (Dieguez et al., 2015). More research is required to
examine the role of people’s ability to process information. The role of education in conspiracy belief
is becoming clearer (e.g., Douglas et al., 2016; van Prooijen, 2017), but further delineating the role of
both crystalline and fluid intelligence (Catell, 1971) is required if we are to know whether conspiracy
belief arises from a cognitive deficit or instead from a lack of skills that education provides.
Also, research and theory on the relationship between political conviction and conspiracy belief
is clear, and even settled, on some points but not on others. As we have seen, it is clear that people
on both sides of the left-right political spectrum entertain conspiracy beliefs about the other side.
However, some scholars maintain that conspiracy theories are more characteristic of the right than
the left. Others dispute this and suggest that conspiracy theories are overwhelmingly bipartisan—
found on both sides of any political debate (Berlet, 1992; Citrin, McClosky, Shanks, & Sniderman,
1975; Graumann, 1987; Hollander, 2017). Still others find that conspiracy theories are stronger at the
political extremes (van Prooijen et al., 2015). A great deal more work involving comparative studies
of conspiracy theories in different political epochs, of conspiracy theories in different contemporary
polities, and different varieties of conspiracy belief, is required.
Further research is also needed to understand the communication of conspiracy theories. The
development of automatic coding of web content, of social networks in Web 2.0, and analyses of
communication dynamics opens up many opportunities to study the large-scale communication of
conspiracy theories and its implications for social and political processes. These technologies have
much to offer the conspiracy theory literature. One of their advantages is their ecological valid-
ity—they allow researchers to directly observe the unfolding and sharing of conspiracy theories
in real time and in real life, rather than through the medium of self-report surveys and laboratory
simulations. A related and very important advantage is that these technologies allow access to large
numbers of conspiracy believers who can be very hard to reach for survey and experimental studies.
These methods will allow researchers to address crucial research questions that are impossible to
address in other ways, such as examining patterns of conspiracy communication alongside political
movements and political events. In terms of small-scale communication of conspiracy theories, many
23
Conspiracy Theories
research questions also remain ripe for investigation using the traditional survey, interview, and ex-
perimental methodologies of the social sciences. One core theoretical question concerns the relation-
ships between producing conspiracy theories, believing in them, and actively communicating them
to others. As political leaders such as Donald Trump and Viktor Orbán increasingly use conspiracy
theories to discredit the opposition and win votes, these questions have never been more important.
As the research on conspiracy theories has developed, it has become increasingly clear that con-
spiracy theories are likely to affect important social and political outcomes. But, since most research
has focused on the causes rather than the consequences of conspiracy theorizing, much more work
is needed. For example, there is surprisingly little research into how people who espouse conspiracy
theories are viewed, and whilst some research has revealed that people fear social exclusion from
expressing conspiracy beliefs (Lantian, Muller, Nurra, Klein, Berjot & Pantazi, 2018), one study
suggests that labelling statements as “conspiracy theories” may not lower their perceived credibility
(Wood, 2016). Future research could examine the social consequences that face people who adopt
conspiracy theories. Taking the opposite perspective, research could also examine the social conse-
quences that face people who are viewed as the victims of conspiracies or those who are alleged to
have been involved in conspiracies.
Further, a good deal of research has explored the ideological variables and worldviews that con-
tribute to conspiracy belief. Future research could begin to examine the interplay between ideology
and conspiracy belief—how conspiracy theories may shape ideological variables, and how conspir-
acy and ideological variables may interact with each other to affect social and political behavior. For
example, future research could also explore the consequences of conspiracy theories for political
engagement and collective action. Past work has yielded mixed evidence showing that on the one
hand, exposure to conspiracy theories decreases political engagement (Jolley and Douglas, 2014b),
but on the other it may stimulate collective action against the powerful elites (Imhoff and Bruder,
2014). It is possible that conspiracy beliefs decrease normative forms of political engagement, but
stimulate disruptive forms of political engagement.
Finally, more research is needed to determine how it is possible to successfully intervene on
conspiracy theories. Existing research has shown that presenting counterconspiracy information
may sometimes be effective, even among high conspiracy believers (Warner & Neville-Shepard,
2014). Jolley and Douglas (2017) showed that presenting counterconspiracy information before con-
spiracy information—in other words “inoculating” people against conspiracy theories—can reduce
belief. Orosz, Krekó, Paskuj, Tóth-Király, Bothe, and Roland-Lévy (2016) showed that counterar-
guing and even ridiculing conspiracy claims could be effective in reducing conspiracy belief. In
future efforts, researchers may consider some of the techniques used to address misinformation
more generally (e.g., counterarguing, retraction, prewarning; see Flynn et al., 2017 for an overview).
However, research in this area will need to take into account that arguments against conspiracy the-
ories are often ignored or even absorbed into the conspiracy theory (Stojanov, 2015). Interventions
may therefore backfire (Nyhan & Reifler, 2010). Other methods, not designed as interventions but to
facilitate experimental tests of the bases of conspiracy theory, show promise in small-scale settings.
Education may combat conspiracy beliefs as well (Wilson, 2018). Encouraging analytical rather than
intuitive thinking has been shown to reduce conspiracy belief (Swami et al., 2014), as has encourag-
ing people to think of themselves as personally moral (Douglas & Sutton, 2011). Future research is
needed to determine whether these techniques are scalable for use as interventions to reduce belief
in conspiracy theories.
Final Remarks
Scholarly efforts to understand the appeal and consequences of conspiracy theories have
yielded a diverse and interdisciplinary literature. We have argued that conspiracy theories are
24 Douglas et al.
much more than trivial notions and should be taken seriously for several reasons. First, there are a
variety of reasons why a person might adopt conspiracy theories, ranging from personality traits
to satisfying complex social needs. People communicate conspiracy theories by many different
means, satisfying a broad set of political, psychological, and social motives. Finally, conspiracy
theories have effects on both individuals and important societal institutions. Their risks (and ben-
efits) are far-reaching, and much more research needs to be conducted to fully understand the
importance of this pervasive psychological, political, and social phenomenon, especially on the
vulnerable and disadvantaged groups that have been identified as most expected to benefit from
them.
ACKNOWLEDGMENTS
This work was funded by the Centre for Research and Evidence on Security Threats (ESRC
Award: ES/N009614/1). We would like to thank Aife Hopkins-Doyle, Lynsey Mahmood, and
Bonny Hartley for their research assistance on this project. Correspondence concerning this article
should be addressed to Karen Douglas, School of Psychology, University of Kent, CT7 2NP, United
Kingdom. Email: k.douglas@kent.ac.uk
REFERENCES
Aaronovitch, D. (2010). Voodoo histories: The role of the conspiracy theory in shaping modern history. New York, NY:
Riverhead Books.
Abalakina-Paap, M., Stephan, W. G., Craig, T., & Gregory, W. L. (1999). Beliefs in conspiracies. Political Psychology, 20(3),
637–647. https://doi.org/10.1111/0162-895X.00160
Allen, L. (2016). Sincerity, hypocrisy, and conspiracy theory in the occupied Palestinian Territory. International Journal of
Middle East Studies, 48(4), 701–720. https://doi.org/10.1017/S0020743816000830
Altemeyer, B. (1996). The authoritarian specter. Cambridge, MA: Harvard University Press.
Anderegg, W. R., & Goldsmith, G. R. (2014). Public interest in climate change over the past decade and the effects of
the ‘climategate’ media event. Environmental Research Letters, 9(5). Retrieved from http://iopscience.iop.org/arti-
cle/10.1088/1748-9326/9/5/054005/meta. https://doi.org/10.1088/1748-9326/9/5/054005
Arnold, G. B. (2008). Conspiracy theory in film, television, and politics. Westport, CT: Praeger.
Atkinson, M., DeWitt, D., & Uscinski, J. E. (2017). Conspiracy theories in the 2016 election. Conventional Wisdom, Parties,
and Broken Barriers in the 2016 Election , 163.
Atkinson, M. D., & DeWitt, D. (2018). The politics of disruption: Social choice theory and conspiracy theory politics. In J. E.
Uscinski (Ed.), Conspiracy theories and the people who believe them (pp. 298–318). New York, NY: Oxford University
Press.
Ball, K. (2016). Cultural mistrust, conspiracy theories and attitudes towards HIV testing among African Americans. Journal
of AIDS and Clinical Research, 7(8). https://doi.org/10.4172/2155-6113.1000602
Barlow, F. K., Paolini, S., Pedersen, A., Hornsey, M. J., Radke, H. R., Harwood, J., … Sibley, C. G. (2012). The contact caveat
negative contact predicts increased prejudice more than positive contact predicts reduced prejudice. Personality and
Social Psychology Bulletin, 38(12), 1629–1643. https://doi.org/10.1177/0146167212457953
Barron, D., Morgan, K., Towell, T., Altemeyer, B., & Swami, V. (2014). Associations between schizotypy and belief in con-
spiracist ideation. Personality and Individual Differences, 70, 156–159. https://doi.org/10.1016/j.paid.2014.06.040
Bartlett, J., & Miller, C. (2010). The power of unreason: Conspiracy theories, extremism and counter-terrorism. London,
United Kingdom: Demos.
Basham, L. (2003). Malevolent global conspiracy. Journal of Social Philosophy, 34(1), 91–103. https://doi.
org/10.1111/1467-9833.00167
Berinsky, A. J. (2007). Assuming the costs of war: Events, elites, and American public support for military conflict. Journal
of Politics, 69(4), 975–997. https://doi.org/10.1111/j.1468-2508.2007.00602.x
Berinsky, A. J. (2009). In time of war: Understanding American public opinion from World War II to Iraq. Chicago, IL:
University of Chicago Press.
Berinsky, A. J. (2012). Rumors, truths, and reality: A study of political misinformation. Retrieved from http://web.mit.edu/
berinsky/www/files/rumor.pdf
25
Conspiracy Theories
Berinsky, A. J. (2018). Telling the truth about believing the lies? Evidence for the limited prevalence of expressive survey
responding. Journal of Politics, 80, 2011–224. https://doi.org/10.1086/694258
Berlet, C. (1992). Friendly fascists: The far right tries to move in on the left. The Progressive, 56, 16–20.
Bessi, A., Caldarelli, G., Del Vicario, M., Scala, A., & Quattrociocchi, W. (2014). Social determinants of content selection in
the age of (mis)information. In L. M. Aiello & D. McFarland (Eds.), Lecture Notes in Computer Science: Vol. 8851. Social
Informatics (pp. 259–268). Basel, Switzerland: Springer International. https://doi.org/10.1007/978-3-319-13734-6_18
Bessi, A., Coletto, M., Davidescu, G. A., Scala, A., Caldarelli, G., & Quattrociocchi, W. (2015). Science vs conspiracy:
Collective narratives in the age of misinformation. PLoS ONE, 10(2), e0118093. https://doi.org/10.1371/journal.
pone.0118093
Bessi, A., Zollo, F., Del Vicario, M., Scala, A., Caldarelli, G., & Quattrociocchi, W. (2015). Trend of narratives in the age of
misinformation. PLoS ONE, 10(8), e0134641. https://doi.org/10.1371/journal.pone.0134641
Bhatia, A. (2006). Critical discourse analysis of political press conferences. Discourse & Society, 17(2), 173–203. https://doi.
org/10.1177/0957926506058057
Bilewicz, M., Winiewski, M., Kofta, M., & Wójcik, A. (2013). Harmful ideas, the structure and consequences of anti-semitic
beliefs in Poland. Political Psychology, 34(6), 821–839. https://doi.org/10.1111/pops.12024
Bjerg, O., & Presskorn-Thygese, T. (2017). Conspiracy theory: Truth claim or language game? Theory, Culture & Society, 34,
137–159. https://doi.org/10.1177/0263276416657880
Bogart, L. M., & Bird, S. T. (2003). Exploring the relationship of conspiracy beliefs about HIV/AIDS to sexual behaviors and
attitudes among African-American adults. Journal of the National Medical Association, 95(11), 1057–1065. Retrieved
from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2594665/
Bogart, L. M., Galvan, F. H., Wagner, G. J., & Klein, D. J. (2011). Longitudinal association of HIV conspiracy beliefs
with sexual risk among black males living with HIV. AIDS and Behavior, 15(6), 1180–1186. https://doi.org/10.1007/
s10461-010-9796-7
Bogart, L. M., & Thorburn, S. (2005). Are HIV/AIDS conspiracy beliefs a barrier to HIV prevention among African
Americans? JAIDS Journal of Acquired Immune Deficiency Syndromes, 38(2), 213–218. Retrieved from https://www.
ncbi.nlm.nih.gov/pubmed/15671808
Bogart, L. M., Wagner, G., Galvan, F. H., & Banks, D. (2010). Conspiracy beliefs about HIV are related to antiretroviral
treatment nonadherence among African American men with HIV. Journal of Acquired Immune Deficiency Syndromes,
53(5), 648–655. https://doi.org/10.1097/QAI.0b013e3181c57dbc
Bricker, B. J. (2013). Climategate: A case study in the intersection of facticity and conspiracy theory. Communication Studies,
64(2), 218–239. https://doi.org/10.1080/10510974.2012.749294
Briggs, C. L. (2004). Theorizing modernity conspiratorially: Science, scale, and the political economy of public discourse in
explanations of a cholera epidemic. American Ethnologist, 31, 164–87. https://doi.org/10.1525/ae.2004.31.2.164
Brotherton, R., & Eser, S. (2015). Bored to fears: Boredom proneness, paranoia, and conspiracy theories. Personality and
Individual Differences, 80, 1–5. https://doi.org/10.1016/j.paid.2015.02.011
Brotherton, R., & French, C. C. (2015). Intention seekers: Conspiracist ideation and biased attributions of intentionality. PLoS
ONE, 10(5), e0124125. https://doi.org/10.1371/journal.pone.0124125
Brotherton, R., French, C. C., & Pickering, A. D. (2013). Measuring belief in conspiracy theories: The generic conspiracist
beliefs scale. Frontiers in Psychology, 4(279), 1–15. https://doi.org/10.3389/fpsyg.2013.00279
Bruder, M., Haffke, P., Neave, N., Nouripanah, N., & Imhoff, R. (2013). Measuring individual differences in generic beliefs
in conspiracy theories across cultures: Conspiracy mentality questionnaire. Frontiers in Psychology, 4(225). https://doi.
org/10.3389/fpsyg.2013.00225
Bullock, J. G., Gerber, A. S., Hill, S. J., & Huber, A. (2015). Partisan bias in factual beliefs about politics. Quarterly Journal
of Political Science, 10, 519–578. https://doi.org/10.1561/100.00014074
Butler, L. D., Koopman, C., & Zimbardo, P. G. (1995). The psychological impact of viewing the film JFK: Emotions, beliefs,
and political behavioral intentions. Political Psychology, 16(2), 237–257. https://doi.org/10.2307/3791831
Butter, M., & Knight, P. (2018). The history of conspiracy theory research: A review and commentary. In J. E. Uscinski (Ed.),
Conspiracy theories and the people who believe them (pp. 33–52). New York, NY: Oxford University Press.
Byford, J. (2011). Conspiracy theories: A critical introduction. Basingstoke, United Kingdom: Palgrave MacMillan.
Campbell, A., Converse, P. E., Miller, W. E., & Stokes, D. (1960). The American voter. New York, NY: John Wiley & Sons.
Cardiff, C. F., & Klein, D. B. (2005). Faculty partisan affiliations in all disciplines: A voter registration study. Critical Review,
17(3–4), 237–255. https://doi.org/10.1080/08913810508443639
Carey, J. M., Nyhan, B., Valentino, B., & Liu, M. (2016). An inflated view of the facts? How preferences and pre-
dispositions shape conspiracy beliefs about the Deflategate scandal. Research & Politics, 3(3), 1–9. https://doi.
org/10.1177/2053168016668671
26 Douglas et al.
Cassino, D. (2016). Fairleigh Dickinson University’s Publicmind poll finds trump supporters more conspiracy-minded than
other Republicans. Retrieved from http://view2.fdu.edu/publicmind/2016/160504/
Cassino, D., & Jenkins, K. (2013). Conspiracy theories prosper: 25% of Americans are “Truthers.” Press release.
Cattell, R. B. (1971). Abilities: Their structure, growth, and action. New York, NY: Houghton Mifflin.
Chayinska, M., & Minescu, A. (2018). “They’ve conspired against us”: Understanding the role of social identification and
conspiracy beliefs in justification of ingroup collective behavior. European Journal of Social Psychology, 48, 990–998.
doi:10.1002/ejsp.2511
Chung, K. (2009). The phenomenon of the conspiracy theory has contributed substantially to the belief that vaccination is the
direct cause of autism. Journal of the American Osteopathic Association, 109(7), 384–386. Retrieved from https://www.
ncbi.nlm.nih.gov/pubmed/19654281
Cichocka, A., Marchlewska, M., & Golec de Zavala, A. (2016). Does self-love or self-hate predict conspiracy beliefs?
Narcissism, self-esteem, and the endorsement of conspiracy theories. Social Psychological and Personality Science,
7(2), 157–166. https://doi.org/10.1177/1948550615616170
Cichocka, A., Marchlewska, M., Golec de Zavala, A., & Olechowski, M. (2016). ‘They will not control us’: Ingroup posi-
tivity and belief in intergroup conspiracies. British Journal of Psychology, 107(3), 556–576. https://doi.org/10.1111/
bjop.12158
Citrin, J., McClosky, H., Shanks, J. M., & Sniderman, P. M. (1975). Personal and political sources of political alienation.
British Journal of Political Science, 5(1), 1–31. https://doi.org/10.1017/S0007123400008024
Claassen, R. L., & Ensley, M. J. (2016). Motivated reasoning and yard-sign-stealing partisans: Mine is a likable rogue, yours
is a degenerate criminal. Political Behavior, 38(2), 317–335. https://doi.org/10.1007/s11109-015-9313-9
Clarke, S. (2002). Conspiracy theories and conspiracy theorizing. Philosophy of the Social Sciences, 32(2), 131–150. https://
doi.org/10.1177/004931032002001
Clarke, S. (2007). Conspiracy theories and the Internet: Controlled demolition and arrested development. Episteme, 4(2),
167–180. https://doi.org/10.3366/epi.2007.4.2.167
Clementson, D. E. (2016). Why do we think politicians are so evasive? Insight from theories of equivocation and deception,
with a content analysis of US presidential debates, 1996–2012. Journal of Language and Social Psychology, 35(3),
247–267. https://doi.org/10.1177/0261927X15600732
Coady, D. (2006). Conspiracy theories: The philosophical debate. Farnham, United Kingdom: Ashgate.
Corte, U., & Edwards, B. (2008). White power music and the mobilization of racist social movements. Music and Arts in
Action, 1(1), 4–20. Retrieved from http://musicandartsinaction.net/index.php/maia/article/view/whitepowermusic
Craciun, C., & Baban, A. (2012). “Who will take the blame?” Understanding the reasons why Romanian mothers decline HPV
vaccination for their daughters. Vaccine, 30(48), 6789–6793. https://doi.org/10.1016/j.vaccine.2012.09.016
Craft, S., Ashley, S., & Maksl, A. (2017). News media literacy and conspiracy theory endorsement. Communication and the
Public, 2, 388–401. https://doi.org/10.1177/2057047317725539
Crocker, J., Luhtanen, R., Broadnax, S., & Blaine, B. E. (1999). Belief in US government conspiracies against blacks among
black and white college students: Powerlessness or system blame? Personality and Social Psychology Bulletin, 25(8),
941–953. https://doi.org/10.1177/01461672992511003
Cullen, J. T. (2018). Communication with the public about the Fukushima Dai-ichi disaster. In J. E. Uscinski (Ed.), Conspiracy
theories and the people who believe them. New York, NY: Oxford University Press.
Dagnall, N., Denovan, A., Drinkwater, K., Parker, A., & Clough, P. J. (2017). Urban legends and paranormal beliefs: The role
of reality testing and Schizotypy. Frontiers in Psychology, 8(942). https://doi.org/10.3389/fpsyg.2017.00942
Dagnall, N., Drinkwater, K., Parker, A., Denovan, A., & Parton, M. (2015). Conspiracy theory and cognitive style: A world-
view. Frontiers in Psychology, 6, (206). https://doi.org/10.3389/fpsyg.2015.00206
Dai, Y., & Handley-Schachler, M. (2015). A fundamental weakness in auditing: The need for a conspiracy theory. Procedia
Economics and Finance, 28, 1–6. https://doi.org/10.1016/S2212-5671(15)01074-6
Darwin, H., Neave, N., & Holmes, J. (2011). Belief in conspiracy theories. The role of paranormal belief, paranoid ideation
and schizotypy. Personality and Individual Differences, 50(8), 1289–1293. https://doi.org/10.1016/j.paid.2011.02.027
Davis, J., Wetherell, G., & Henry, P. J. (2018). Social devaluation of African Americans and race-related conspiracy theories.
European Journal of Social Psychology, 48, 999–1010. doi:10.1002/ejsp.2531
Del Vicario, M., Bessi, A., Zollo, F., Petroni, F., Scala, A., Caldarelli, G., … Quattrociocchi, W. (2016). The spreading of mis-
information online. Proceedings of the National Academy of Sciences, 113(3), 554–559. doi:10.1073/pnas.1517441113
Dentith, M. R. X. (2016b) Treating conspiracy theories seriously: A reply to Basham on Dentith. Social Epistemology Review
and Reply Collective, 5(9), 1–5. Retrieved from http://wp.me/p1Bfg0-3ak
Dentith, M. R. X. (2016a). When inferring to a conspiracy might be the best explanation. Social Epistemology, 30(5–6),
572–591. https://doi.org/10.1080/02691728.2016.1172362
Dentith, M. R., & Orr, M. (2017). Secrecy and conspiracy. Episteme, 14, 1–18. https://doi.org/10.1017/epi.2017.9
27
Conspiracy Theories
DeWitt, D., Atkinson, M., & Wegner, D. (2018). How conspiracy theories spread. In J. E. Uscinski (Ed.), Conspiracy theories
and the people who believe them. New York, NY: Oxford University Press.
Dieguez, S., Wagner-Egger, P., & Gauvrit, N. (2015). Nothing happens by accident, or does it? A low prior for ran-
domness does not explain belief in conspiracy theories. Psychological Science, 26(11), 1762–1770. https://doi.
org/10.1177/0956797615598740
DiFonzo, N., Bordia, P., & Rosnow, R. L. (1994). Reining in rumors. Organizational Dynamics, 23(1), 47–62. https://doi.
org/10.1016/0090-2616(94)90087-6
Dorfman, R. (1980). Conspiracy city. Journal of Popular Film and Television, 7(4), 434–456. https://doi.org/10.1080/01956
051.1980.9943901
Douglas, K. M., & Leite, A. C. (2017). Suspicion in the workplace: Organizational conspiracy theories and work-related
outcomes. British Journal of Psychology, https://doi.org/10.1111/bjop.12212
Douglas, K. M., & Sutton, R. M. (2008). The hidden impact of conspiracy theories: Perceived and actual influence of theo-
ries surrounding the death of Princess Diana. Journal of Social Psychology, 148(2), 210–222. https://doi.org/10.3200/
SOCP.148.2.210-222
Douglas, K. M., & Sutton, R. M. (2011). Does it take one to know one? Belief in conspiracy theories is influ-
enced by personal willingness to conspire. British Journal of Social Psychology, 50(3), 544–552. https://doi.
org/10.1111/j.2044-8309.2010.02018.x
Douglas, K. M., & Sutton, R. M. (2015). Climate change: Why the conspiracy theories are dangerous. Bulletin of the Atomic
Scientists, 71(2), 98–106. https://doi.org/10.1177/0096340215571908
Douglas, K. M., Sutton, R. M., Callan, M. J., Dawtry, R. J., & Harvey, A. J. (2016). Someone is pulling the strings:
Hypersensitive agency detection and belief in conspiracy theories. Thinking & Reasoning, 22(1), 57–77. https://doi.org
/10.1080/13546783.2015.1051586
Douglas, K. M., Sutton, R. M., & Cichocka, A. (2017). The psychology of conspiracy theories. Current Directions in
Psychological Science, 26(6), 538–542. https://doi.org/10.1177/0963721417718261
Dredze, M., Broniatowski, D. A., & Hilyard, K. M. (2016). Zika vaccine misconceptions: A social media analysis. Vaccine,
34, 3441–3442. https://doi.org/10.1016/j.vaccine.2016.05.008
Drinkwater, K., Dagnall, N., & Parker, A. (2012). Reality testing, conspiracy theories, and paranormal beliefs. Journal of
Parapsychology, 76(1), 57–77
Drochon, H. (2018). Who believes in conspiracy theories in Great Britain and Europe? In J. E. Uscinski (Ed.), Conspiracy
theories and the people who believe them. New York, NY: Oxford University Press.
Duran, N. D., Nicholson, S. P., & Dale, R. (2017). The hidden appeal and aversion to political conspiracies as revealed in
the response dynamics of partisans. Journal of Experimental Social Psychology, 73, 268–278. https://doi.org/10.1016/j.
jesp.2017.07.008.
Edelson, J., Alduncin, A., Krewson, C., Sieja, J. A., & Uscinski, J. E. (2017). The effects of conspiratorial thinking
and motivated reasoning on belief in election fraud. Political Research Quarterly, 70(4), 933–946. https://doi.
org/10.1177/1065912917721061
Einstein, K. L., & Glick, D. M. (2013, August). Scandals, conspiracies and the vicious cycle of cynicism . Paper presented at
the Annual Meeting of the American Political Science Association, Chicago, IL.
van Elk, M., & Lodder, P. (2018). Experimental manipulations of personal control do not increase illusory pattern perception.
Collabra: Psychology, 4, 19. https://doi.org/10.1525/collabra.155
Enders, A. M., & Smallpage, S. M. (2018). Polls, plots, and party politics: Conspiracy theories in contemporary America.
In J. E. Uscinski (Ed.), Conspiracy theories and the people who believe them (pp. 298–318). New York, NY: Oxford
University Press.
Enders, A. M., Smallpage, S. M., & Lupton, R. N. (in press). Are all “Birthers” conspiracy theorists? On the relationship
between conspiratorial thinking and political orientations. British Journal of Political Science. https://doi.org/10.1017/
S0007123417000837
Faasse, K., Chatman, C. J., & Martin, L. R. (2016). A comparison of language use in pro-and anti-vaccination comments in
response to a high profile Facebook post. Vaccine, 34(47), 5808–5814. https://doi.org/10.1016/j.vaccine.2016.09.029
Federico, C. M., Williams, A. L., & Vitriol, J. A. (2018). The role of system identity threat in conspiracy theory endorsement.
European Journal of Social Psychology, 48, 927–938. doi:10.1002/ejsp.2495
Fekete, L. (2012). The Muslim conspiracy theory and the Oslo massacre. Race and Class, 53(3), 30–47. https://doi.
org/10.1177/0306396811425984
Filer, T. (2018). The hidden and the revealed: Styles of political conspiracy theory in Kirchnerism. In J. E. Uscinski (Ed.),
Conspiracy theories and the people who believe them. New York, NY: Oxford University Press.
Flynn, D. J., Nyhan, B., & Reifler, J. (2017). The nature and origins of misperceptions: Understanding false and unsupported
beliefs about politics. Advances in Political Psychology, 38, 127–150. https://doi.org/10.1111/pops.12394
28 Douglas et al.
Ford, C. L., Wallace, S. P., Newman, P. A., Lee, S. J., & William, E. C. (2013). Belief in AIDS-related conspiracy theories
and mistrust in the government: Relationship with HIV testing among at-risk older adults. The Gerontologist, 53(6),
973–984. https://doi.org/10.1093/geront/gns192
Franks, B., Bangerter, A., & Bauer, M. W. (2013). Conspiracy theories as quasi-religious mentality: An integrated account
from cognitive science, social representations theory, and frame theory. Frontiers in Psychology, 4(424), https://doi.
org/10.3389/fpsyg.2013.00424
Franks, B., Bangerter, A., Bauer, M. W., Hall, M., & Noort, M. C. (2017). Beyond “monologicality”? Exploring conspiracist
worldviews. Frontiers in Psychology, 8(861), https://doi.org/10.3389/fpsyg.2017.00861
Freeman, D., & Bentall, R. P. (2017). The concomitants of conspiracy concerns. Social Psychiatry and Psychiatric
Epidemiology, 52(5), 595–604. https://doi.org/10.1007/s00127-017-1354-4
Furnham, A. (2013). Commercial conspiracy theories: A pilot study. Frontiers in Psychology, 4(379), https://doi.org/10.3389/
fpsyg.2013.00379
Galliford, N., & Furnham, A. (2017). Individual difference factors and beliefs in medical and political conspiracy theories.
Scandinavian Journal of Psychology, 58, 422–428. https://doi.org/10.1111/sjop.12382
Goertzel, T. (1994). Belief in conspiracy theories. Political Psychology, 15(4), 731–742. https://doi.org/10.2307/3791630
Goertzel, T. (2010). Conspiracy theories in science. EMBO Reports, 11(7), 493–499. https://doi.org/10.1038/embor.2010.84
Golec de Zavala, A., & Cichocka, A. (2012). Collective narcissism and anti-Semitism in Poland. Group Processes and
Intergroup Relations, 15, 213–229. https://doi.org/10.1177/1368430211420891
Golec de Zavala, A. G., Cichocka, A., Eidelson, R., & Jayawickreme, N. (2009). Collective narcissism and its social conse-
quences. Journal of Personality and Social Psychology, 97(6), 1074–1096. https://doi.org/10.1037/a0016904
Golec de Zavala, A. G., & Federico, C. M. (2018). Collective narcissism and the growth of conspiracy thinking over the
course of the 2016 United States presidential election: A longitudinal analysis. European Journal of Social Psychology,
48, 1011–1018. doi:10.1002/ejsp.2496
Golo, N., & Galam, S. (2015). Conspiratorial beliefs observed through entropy principles. Entropy, 17(8), 5611–5634. https://
doi.org/10.3390/e17085611
Gosa, T. L. (2011). Counterknowledge, racial paranoia, and the cultic milieu: Decoding hip hop conspiracy theory. Poetics,
39(3), 187–204. https://doi.org/10.1016/j.poetic.2011.03.003
Grant, L., Hausman, B. L., Cashion, M., Lucchesi, N., Patel, K., & Roberts, J. (2015). Vaccination persuasion online: A qual-
itative study of two provaccine and two vaccine-skeptical websites. Journal of Medical Internet Research, 17(5), e133.
https://doi.org/10.2196/jmir.4153
Graumann, C. F. (1987). Conspiracy: History and social psychology—A synopsis. In C. F. Graumann & S. Moscovici
(Eds.), Changing conceptions of conspiracy, Springer Series in Social Psychology (pp. 245–251). New York, NY:
Springer-Verlag.
Grebe, E. G., & Nattrass, N. (2012). AIDS conspiracy beliefs and unsafe sex in Cape Town. AIDS and Behavior, 16, 761–773.
doi:10.1007/s10461-011-9958-2
Green, R., & Douglas, K. M. (2018). Anxious attachment and belief in conspiracy theories. Personality and Individual
Differences, 125, 30–37. https://doi.org/10.1016/j.paid.2017.12.023
Greenhill, K. M., & Oppenheim, B. (2017). Rumor has it: The adoption of unverified information in conflict zones.
International Studies Quarterly, 61, 660–676. doi:10.1093/isq/sqx015
Grimes, D. R. (2016). On the viability of conspiratorial beliefs. PLoS ONE, 11(3), e0151003. https://doi.org/10.1371/journal.
pone.0147905
Grzesiak-Feldman, M. (2013). The effect of high-anxiety situations on conspiracy thinking. Current Psychology, 32(1), 100–
118. https://doi.org/10.1007/s12144-013-9165-6
Grzesiak-Feldman, M., & Irzycka, M. (2009). Right-wing authoritarianism and conspiracy thinking in a Polish sample.
Psychological Reports, 105(2), 389–393. https://doi.org/10.2466/PR0.105.2.389-393
Hall, P. M., & Hewitt, J. P. (1970). The quasi-theory of communication and the management of dissent. Social Problems,
18(1), 17–27. https://doi.org/10.2307/799877
Harambam, J., & Aupers, S. (2017). “I am not a conspiracy theorist”: Relational identifications in the Dutch conspiracy mi-
lieu. Cultural Sociology, 11(1), 113–129. https://doi.org/10.1177/1749975516661959
Hartman, T. K., & Newmark, A. J. (2012). Motivated reasoning, political sophistication, and associations between President
Obama and Islam. Political Science & Politics, 45(3), 449–455. https://doi.org/10.1017/S1049096512000327
Hofstadter, R. (1964). The paranoid style in American politics and other essays. Cambridge, MA: Harvard University Press.
Hogg, R., Nkala, B., Dietrich, J., Collins, A., Closson, K., Cui, Z., … Kaida, A. (2017). Conspiracy beliefs and knowledge
about HIV origins among adolescents in Soweto. South Africa. PLOS ONE, 12(2), e0165087. https://doi.org/10.1371/
journal.pone.0165087
Hollander, P. (2017). Political pilgrims: Western intellectuals in search of the good society. New York, NY: Routledge.
29
Conspiracy Theories
Hoyt, M. A., Rubin, L. R., Nemeroff, C. J., Lee, J., Huebner, D. M., & Proeschold-Bell, R. J. (2012). HIV/AIDS-related in-
stitutional mistrust among multiethnic men who have sex with men: Effects on HIV testing and risk behaviors. Health
Psychology, 31(3), 269–277. https://doi.org/10.1037/a0025953
Icke, D. (2001). Children of the matrix: How an interdimensional race has controlled the world for thousands of years—and
still does. Wildwood, MO: Bridge of Love Publications.
Imhoff, R., & Bruder, M. (2014). Speaking (un-) truth to power: Conspiracy mentality as a generalised political attitude.
European Journal of Personality, 28(1), 25–43. https://doi.org/10.1002/per.1930
Imhoff, R., & Lamberty, P. K. (2017). Too special to be duped: Need for uniqueness motivates conspiracy beliefs. European
Journal of Social Psychology, 47(6), 724–734. https://doi.org/10.1002/ejsp.2265
Imhoff, R., & Lamberty, P. (2018). How paranoid are conspiracy believers? Toward a more fine-grained understanding of the
connect and disconnect between paranoia and belief in conspiracy theories. European Journal of Social Psychology, 48,
909–926. https://doi.org/10.1002/ejsp.2494
Jacques, P. J., & Connolly Knox, C. (2016). Hurricanes and hegemony: A qualitative analysis of micro-level climate change
denial discourses. Environmental Politics, 25(5), 831–852. https://doi.org/10.1080/09644016.2016.1189233
Jameson, F. (1992). Totality as conspiracy. The geopolitical aesthetic: Cinema and space in the World system. Bloomington,
IN: Indiana University Press.
Jamil, U., & Rousseau, C. (2011). Challenging the “official” story of 9/11: Community narratives and conspiracy theories.
Ethnicities, 11(2), 245–261. https://doi.org/10.1177/1468796811398836
Jerit, J., & Barabas, J. (2012). Partisan perceptual bias and the information environment. Journal of Politics, 74(3), 672–684.
https://doi.org/10.1017/S0022381612000187
Johnson, J. (2018). The self-radicalization of white men: “Fake news” and the affective networking of paranoia. Communication
Culture & Critique, 11, 100–115. https://doi.org/10.1093/ccc/tcx014
Jolley, D., & Douglas, K. M. (2014a). The social consequences of conspiracism: Exposure to conspiracy theories decreases
intentions to engage in politics and reduce one’s carbon footprint. British Journal of Psychology, 105(1), 35–56. https://
doi.org/10.1111/bjop.12018
Jolley, D., & Douglas, K. M. (2014b). The effects of anti-vaccine conspiracy theories on vaccination intentions. PLoS ONE,
9(2), e89177. https://doi.org/10.1371/journal.pone.0089177
Jolley, D., & Douglas, K. M. (2017). Prevention is better than cure: Addressing anti-vaccine conspiracy theories. Journal of
Applied Social Psychology, 47(8), 459–469. https://doi.org/10.1111/jasp.12453
Jolley, D., Douglas, K. M., Leite, A. C., & Schrader, T. (in press). Belief in conspiracy theories and intentions to engage in
everyday crime. British Journal of Social Psychology. doi:10.1111/bjso.12311
Jolley, D., Douglas, K. M., & Sutton, R. M. (2018). Blaming a few bad apples to save a threatened barrel: The system-justify-
ing function of conspiracy theories. Political Psychology, 39, 465–478. https://doi.org/10.1111/pops.12404
Jost, J. T., Glaser, J., Kruglanski, A. W., & Sulloway, F. J. (2003). Political conservatism as motivated social cognition.
Psychological Bulletin, 129(3), 339–375. https://doi.org/10.1037/0033-2909.129.3.339
Karp, J. A., Nai, A., & Norris, P. (2018). Dial ‘F’ for fraud: Explaining citizens suspicions about elections. Electoral Studies,
53, 11–19. https://doi.org/10.1016/j.electstud.2018.01.010
Kata, A. (2010). A postmodern Pandora’s box: Anti-vaccination misinformation on the Internet. Vaccine, 28(7), 1709–1716.
https://doi.org/10.1016/j.vaccine.2009.12.022
Keeley, B. L. (1999). Of conspiracy theories. Journal of Philosophy, 96, 109–126. https://doi.org/10.2139/ssrn.1084585
Khan, T. M., & Sahibzada, M. U. K. (2016). Challenges to health workers and their opinions about parents’ refusal of oral
polio vaccination in the Khyber Pakhtoon Khawa (KPK) province. Pakistan. Vaccine, 34(18), 2074–2081. https://doi.
org/10.1016/j.vaccine.2016.03.008
Kim, M., & Cao, X. (2016). The impact of exposure to media messages promoting government conspiracy theories on dis-
trust in the government: Evidence from a two-stage randomized experiment. International Journal of Communication,
10(2016), 3808–3827. Retrieved from http://ijoc.org/index.php/ijoc/article/view/5127
Klein, C., Clutton, P., & Dunn, A. G. (2018). Pathways to conspiracy: The social and linguistic precursors of involvement in
Reddit’s conspiracy theory forum. Retrieved frompsyarxiv.com/8vesf .
Klein, C., Clutton, P., & Polito, V. (2018). Topic modeling reveals distinct interests within an online conspiracy forum.
Frontiers in Psychology, 9. https://doi.org/10.3389/fpsyg.2018.00189
Knight, P. (2000). Conspiracy culture: From the Kennedy assassination to the X-Files. London, United Kingdom: Routledge.
Knight, P. (2001). ILOVEYOU: Viruses, paranoia, and the environment of risk. Sociological Review, 48(S2), 17–30. https://
doi.org/10.1111/j.1467-954X.2000.tb03518.x
Knight, P. (Ed.) (2002). Conspiracy nation: The politics of paranoia in postwar America. New York, NY: New York University
Press.
30 Douglas et al.
Knight, P. (2008). Outrageous conspiracy theories: Popular and official responses to 9/11 in Germany and the United States.
New German Critique, 35(103), 165–193. https://doi.org/10.1215/0094033X-2007-024
Kofta, M., & Sedek, G. (2005). Conspiracy stereotypes of Jews during systemic transformation in Poland. International
Journal of Sociology, 35, 40–64. https://doi.org/10.1080/00207659.2005.11043142
Kofta, M., Sedek, G., & Slawuta, P. N. (2011, July). Beliefs in Jewish conspiracy: The role of situation threats to ingroup
power and positive image . Paper presented at the 34th International Society of Political Psychology (ISSP) conference,
Istanbul, Turkey.
Krouwel, A., Kutiyski, Y., van Prooijen, J. W., Martinsson, J., & Markstedt, E. (2017). Does extreme political ideology predict
conspiracy beliefs, economic evaluations and political trust? Evidence from Sweden. Journal of Social and Political
Psychology, 5(2), 435–462. https://doi.org/10.5964/jspp.v5i2.745
Kunda, Z. (1990). The case for motivated reasoning. Psychological Bulletin, 108(3), 480–498. https://doi.
org/10.1037/0033-2909.108.3.480
Lahrach, Y., & Furnham, A. (2017). Are modern health worries associated with medical conspiracy theories? Journal of
Psychosomatic Research, 99, 89–94. https://doi.org/10.1016/j.jpsychores.2017.06.004
Laine, E. E., & Parakkal, R. (2017). National security, personal insecurity, and political conspiracies: The persistence of
Americans’ beliefs in 9/11 conspiracy theories. IUP Journal of International Relations, 11, 16–41.
Lantian, A., Muller, D., Nurra, C., & Douglas, K. M. (2016). Measuring belief in conspiracy theories: Validation of a French
and English single-item scale. International Review of Social Psychology, 29(1), 1–14. https://doi.org/10.5334/irsp.8
Lantian, A., Muller, D., Nurra, C., & Douglas, K. M. (2017). “I know things they don’t know!” The role of need for uniqueness
in belief in conspiracy theories. Social Psychology, 48(3), 160–173. https://doi.org/10.1027/1864-9335/a000306
Lantian, A., Muller, D., Nurra, C., Klein, O., Berjot, S., & Pantazi, M. (2018). Stigmatized beliefs: Conspiracy theories, antic-
ipated negative evaluation of the self, and fear of social exclusion. European Journal of Social Psychology, 48, 939–954.
doi:10.1002/ejsp.2498
Lee, B. J. (2017). “It’s not paranoia when they are really out to get you”: The role of conspiracy theories in the context of
heightened security. Behavioral Sciences of Terrorism and Political Aggression, 9(1), 4–20. https://doi.org/10.1080/19
434472.2016.1236143
Leiser, D., Duani, N., & Wagner-Egger, P. (2017). The conspiratorial style in lay economic thinking. PLoS ONE, 12(3),
e0171238. https://doi.org/10.1371/journal.pone.0171238
Leman, P. J., & Cinnirella, M. (2013). Beliefs in conspiracy theories and the need for cognitive closure. Frontiers in Psychology,
4(378), https://doi.org/10.3389/fpsyg.2013.00378
Letort, D. (2017). Conspiracy culture in Homeland (2011–2015). Media, War & Conflict, 10, 152–167. https://doi.
org/10.1177/1750635216656968.
Levy, N. (2007). Radically socialized knowledge and conspiracy theories. Episteme, 4(2), 181–192. https://doi.org/10.3366/
epi.2007.4.2.181
Lewandowsky, S. (2018). In Whose Hands the Future? In J. E. Uscinski (Ed.), Conspiracy theories and the people who believe
them (pp. 149–177). New York, NY: Oxford University Press.
Lewandowsky, S., Cook, J., Oberauer, K., Brophy, S., Lloyd, E. A., & Marriott, M. (2015). Recurrent fury: Conspiratorial
discourse in the blogosphere triggered by research on the role of conspiracist ideation in climate denial. Journal of Social
and Political Psychology, 3(1), 142–178. https://doi.org/10.5964/jspp.v3i1.443
Lewandowsky, S., Gignac, G. E., & Oberauer, K. (2013). The role of conspiracist ideation and worldviews in predicting rejec-
tion of science. PLoS ONE, 8(10), e75637. https://doi.org/10.1371/journal.pone.0075637
Lewandowsky, S., Oberauer, K., & Gignac, G. E. (2013). NASA faked the moon landing — therefore, (climate) science
is a hoax: An anatomy of the motivated rejection of science. Psychological Science, 24(5), 622–633. https://doi.
org/10.1177/0956797612457686
van der Linden, S. (2015). The conspiracy-effect: Exposure to conspiracy theories (about global warming) decreases pro-so-
cial behavior and science acceptance. Personality and Individual Differences, 87, 171–173. https://doi.org/10.1016/j.
paid.2015.07.045
Lobato, E., Mendoza, J., Sims, V., & Chin, M. (2014). Examining the relationship between conspiracy theories, paranormal
beliefs, and pseudoscience acceptance among a university population. Applied Cognitive Psychology, 28(5), 617–625.
https://doi.org/10.1002/acp.3042
Lodge, M., & Taber, C. S. (2013). The rationalizing voter. New York, NY: Cambridge University Press.
Lopez, J., & Hillygus, D. S. (2018). Why so serious? Survey trolls and misinformation: SSRN. https://doi.org/10.2139/
ssrn.3131087
Mancosu, M., Vassallo, S., & Vezzoni, C. (2017). Believing in conspiracy theories: Evidence from an exploratory analysis
of Italian survey data. South European Society and Politics, 22(2), 327–344. https://doi.org/10.1080/13608746.2017.1
359894
31
Conspiracy Theories
Marchlewska, M., Cichocka, A., & Kossowska, M. (2018). Addicted to answers: Need for cognitive closure and the endorse-
ment of conspiracy beliefs. European Journal of Social Psychology, 48, 109–117. https://doi.org/10.1002/ejsp.2308
Mashuri, A., & Zaduqisti, E. (2014). We believe in your conspiracy if we distrust you: The role of intergroup distrust in struc-
turing the effect of Islamic identification, competitive victimhood, and group incompatibility on belief in a conspiracy
theory. Journal of Tropical Psychology, 4(11), 1–14. https://doi.org/10.1017/jtp.2014.11
McCauley, C., & Jacques, S. (1979). The popularity of conspiracy theories of presidential assassination: A Bayesian analysis.
Journal of Personality and Social Psychology, 37(5), 637–644. https://doi.org/10.1037/0022-3514.37.5.637
McClosky, H., & Chong, D. (1985). Similarities and differences between left-wing and right-wing radicals. British Journal of
Political Science, 15(3), 329–363. https://doi.org/10.1017/S0007123400004221
McCright, A. M., & Dunlap, R. E. (2011). Cool dudes: The denial of climate change among conservative white males in the
United States. Global Environmental Change, 21(4), 1163–1172. https://doi.org/10.1016/j.gloenvcha.2011.06.003
McHoskey, J. W. (1995). Case closed? On the John F. Kennedy assassination: Biased assimilation of evidence and attitude
polarization. Basic and Applied Social Psychology, 17(3), 395–409. https://doi.org/10.1207/s15324834basp1703_7
McKenzie-McHarg, A. (2018). Conspiracy theory: The nineteenth-century prehistory of a twentieth-century concept. In J. E.
Uscinski (Ed.), Conspiracy theories and the people who believe them (pp. 62–81). New York, NY: Oxford University
Press.
McKenzie-McHarg, A., & Fredheim, R. (2017). Cock-ups and slap-downs: A quantitative analysis of conspiracy rhetoric in
the British Parliament 1916–2015. Historical Methods: A Journal of Quantitative and Interdisciplinary History, 50(3),
156–169. https://doi.org/10.1080/01615440.2017.1320616
Mearsheimer, J. (2011). Why leaders lie: The truth about lying in international politics. New York, NY: Oxford University
Press.
Metaxas, P., & Finn, S. (2017). The infamous “Pizzagate” conspiracy theory: Insights from a twittertrails investigation.
Evanston, IL: Computation and Journalism Symposium.
Mikušková, E. B. (2017). Conspiracy beliefs of future teachers. Current Psychology, 37. https://doi.org/10.1007/
s12144-017-9561-4
Miller, J. M., Saunders, K. L., & Farhart, C. E. (2016). Conspiracy endorsement as motivated reasoning: The moderating
roles of political knowledge and trust. American Journal of Political Science, 60(4), 824–844. https://doi.org/10.1111/
ajps.12234
Miller, S. (2002). Conspiracy theories: Public arguments as coded social critiques: A rhetorical analysis of the TWA Flight
800 conspiracy theories. Argumentation and Advocacy, 39(1), 40–56. https://doi.org/10.1080/00028533.2002.11821576
Moore, A. (2016a). Hayek, conspiracy, and democracy. Critical Review, 28(1), 44–62. https://doi.org/10.1080/08913811.20
16.1167405
Moore, A. (2016b). Conspiracy and conspiracy theories in democratic politics. Critical Review, 28(1), 1–23. https://doi.org/1
0.1080/08913811.2016.1178894
Moore, A. (2018). On the democratic problem of conspiracy theory politics. In J. E. Uscinski (Ed.), Conspiracy theories and
the people who believe them (pp. 111–121). New York, NY: Oxford University Press.
Moran, M. B., Lucas, M., Everhart, K., Morgan, A., & Prickett, E. (2016). What makes anti-vaccine websites persua-
sive? A content analysis of techniques used by anti-vaccine websites to engender anti-vaccine sentiment. Journal of
Communication in Healthcare, 9(3), 151–163. https://doi.org/10.1080/17538068.2016.1235531
Morello, C. (2004, October 7). Conspiracy theories flourish on the internet. Washington Post . Retrieved from http://www.
washingtonpost.com/wp-dyn/articles/A13059-2004Oct6.html
Moscovici, S. (1961). La psychanalyse, son image et son public: étude sur la représentation sociale de la psychanalyse. Paris,
France: Presses Universitaires de France.
Moscovici, S. (1987). The conspiracy mentality. In C. F. Graumann & S. Moscovici (Eds.), Changing conceptions of conspir-
acy (pp. 151–169). London, United Kingdom: Springer.
Mulligan, K., & Habel, P. (2013). The implications of fictional media for political beliefs. American Politics Research, 41(1),
122–146. https://doi.org/10.1177/1532673X12453758
Nattrass, N. (2013). The AIDS conspiracy: Science fights back. New York, NY: Columbia University Press.
Nefes, T. S. (2013). Political parties’ perceptions and uses of anti-Semitic conspiracy theories in Turkey. Sociological Review,
61(2), 247–264. https://doi.org/10.1111/1467-954X.12016
Nefes, T. S. (2014). Rationale of conspiracy theorizing: Who shot the President Chen Shui-bian? Rationality and Society,
26(3), 373–394. https://doi.org/10.1177/1043463113519069
Nefes, T. S. (2015a). Scrutinizing impacts of conspiracy theories on readers’ political views: A rational choice perspective on
anti-Semitic rhetoric in Turkey. British Journal of Sociology, 66(3), 557–575. https://doi.org/10.1111/1468-4446.12137
Nefes, T. S. (2015b). Understanding the anti-Semitic rhetoric in Turkey through the Sevres syndrome. Turkish Studies, 16(4),
572–587. https://doi.org/10.1080/14683849.2015.1084876
32 Douglas et al.
Nefes, T. S. (2017). The impacts of the Turkish Government’s “interest rate lobby” theory about the Gezi Park Protests. Social
Movement Studies, 16(5), 610–622. https://doi.org/10.1080/14742837.2017.1319269
Nera, K., Pantazi, M., & Klein, O. (2018). “These are just stories, Mulder”: Exposure to conspiracist fiction does not produce
narrative persuasion. Frontiers in Psychology, 9, https://doi.org/10.3389/fpsyg.2018.00684
Newheiser, A., Farias, M., & Tausch, N. (2011). The functional nature of conspiracy beliefs: Examining the underpinnings
of belief in the Da Vinci Code conspiracy. Personality and Individual Differences, 51(8), 1007–1011. https://doi.
org/10.1016/j.paid.2011.08.011
Nyhan, B. (2010). Why the “death panel” myth wouldn’t die: Misinformation in the health care reform debate. The Forum,
8(1), 1540–8884. https://doi.org/10.2202/1540-8884.1354
Nyhan, B. (2017). Why more Democrats are now embracing conspiracy theories. Retrieved from https://www.nytimes.
com/2017/02/15/upshot/why-more-democrats-are-now-embracing-conspiracy-theories.html
Nyhan, B., & Reifler, J. (2010). When corrections fail: The persistence of political misperceptions. Political Behaviour, 32(2),
303–330. https://doi.org/10.1007/s11109-010-9112-2
Nyhan, B., & Zeitzoff, T. (2018). Conspiracy and misperception belief in the Middle East and North Africa. Journal of
Politics, 80, 1400–1404. https://doi.org/10.1086/698663
Nyhan, B., Dickinson, F., Dudding, S., Dylgjeri, E., Neiley, E., Pullerits, C., … Walmsley, C. (2016). Classified or coverup?
The effect of redactions on conspiracy theory beliefs. Journal of Experimental Political Science, 3(2), 109–123. https://
doi.org/10.1017/XPS.2015.21
Oliver, J. E., & Wood, T. J. (2014a). Conspiracy theories and the paranoid style(s) of mass opinion. American Journal of
Political Science, 58(4), 952–966. https://doi.org/10.1111/ajps.12084
Oliver, J. E., & Wood, T. J. (2014b). Medical conspiracy theories and health behaviors in the United States. JAMA Internal
Medicine, 174(5), 817–818. https://doi.org/10.1001/jamainternmed.2014.190
Oliver, J. E., & Wood, T. J. (2018). Enchanted America: How intuition and reason divide our politics. Chicago, IL: University
of Chicago Press.
Orosz, G., Krekó, P., Paskuj, B., Tóth-Király, I., Bothe, B., & Roland-Lévy, C. (2016). Changing conspiracy beliefs through
rationality and ridiculing. Frontiers in Psychology, 7(1525), https://doi.org/10.3389/fpsyg.2016.01525
Orr, M., & Husting, G. (2018). Media marginalization of racial minorities: “Conspiracy theorists” in U.S. ghettos and on the
“Arab Street”. In J. E. Uscinski (Ed.), Conspiracy theories and the people who believe them (pp. 82–93). New York,
NY: Oxford University Press.
Parsons, S., Simmons, W., Shinhoster, F., & Kilburn, J. (1999). A test of the grapevine: An empirical examination of the conspiracy
theories among African Americans. Sociological Spectrum, 19(2), 201–222. https://doi.org/10.1080/027321799280235
Pasek, J., Stark, T. H., Krosnick, J. A., & Tompson, T. (2014). What motivates a conspiracy theory? Birther beliefs, partisan-
ship, liberal-conservative ideology, and anti-black attitudes. Electoral Studies, 40, 482–489.
Pigden, C. (1995). Popper revisited, or what is wrong with conspiracy theories? Philosophy of the Social Sciences, 25, 3–34.
https://doi.org/10.1177/004839319502500101
Popper, K. R. (1972). Conjectures and refutations. London, United Kingdom: Routledge Kegan Paul.
Pratt, R. (2003). Theorizing conspiracy. Theory and Society, 32(2), 255–271. https://doi.org/10.1023/A:1023996501425
Prior, M., Sood, G., & Khanna, K. (2015). You cannot be serious: The impact of accuracy incentives on partisan bias in reports
of economic perceptions. Quarterly Journal of Political Science, 10, 489–518. https://doi.org/10.1561/100.00014127
van Prooijen, J.-W. (2017). Why education predicts decreased belief in conspiracy theories. Applied Cognitive Psychology,
31(1), 50–58. https://doi.org/10.1002/acp.3301
van Prooijen, J.-W., & Acker, M. (2015). The influence of control on belief in conspiracy theories: Conceptual and applied
extensions. Applied Cognitive Psychology, 29(5), 753–761. https://doi.org/10.1002/acp.3161
van Prooijen, J.-W., & Douglas, K. M. (2017). Conspiracy theories as part of history: The role of societal crisis situations.
Memory Studies, 10(3), 323–333. 0.1177/1750698017701615
van Prooijen, J.-W., Douglas, K., & De Inocencio, C. (2018). Connecting the dots: Illusory pattern perception predicts belief
in conspiracies and the supernatural. European Journal of Social Psychology, 48, 320–335.
van Prooijen, J.-W., & Jostmann, N. B. (2013). Belief in conspiracy theories: The influence of uncertainty and perceived mo-
rality. European Journal of Social Psychology, 43(1), 109–115. https://doi.org/10.1002/ejsp.1922
van Prooijen, J.-W., Krouwel, A. P. M., & Pollet, T. (2015). Political extremism predicts belief in conspiracy theories. Social
Psychological and Personality Science, 6(5), 570–578. https://doi.org/10.1177/1948550614567356
van Prooijen, J.-W., & de Vries, R. E. (2016). Organisational conspiracy beliefs: Implications for leadership styles and em-
ployee outcomes. Journal of Business and Psychology, 31(4), 479–491. https://doi.org/10.1007/s10869-015-9428-3
Public Policy Polling (2013). Conspiracy theory poll results. Retrieved from http://www.publicpolicypolling.com/pdf/2011/
PPP_Release_National_ConspiracyTheories_004021.pdf
33
Conspiracy Theories
Raab, M. H., Ortlieb, S. A., Auer, N., Guthmann, K., & Carbon, C. C. (2013). Thirty shades of truth: Conspiracy theo-
ries as stories of individuation, not of pathological delusion. Frontiers in Psychology, 4(406), https://doi.org/10.3389/
fpsyg.2013.00406
Radnitz, S., & Underwood, P. (2017). Is belief in conspiracy theories pathological? A survey experiment on the cognitive roots
of extreme suspicion. British Journal of Political Science, 47(1), 113–129. https://doi.org/10.1017/S0007123414000556
Räikkä, J., & Basham, L. (2018). Conspiracy theory phobia. In J. E. Uscinski (Ed.), Conspiracy theories and the people who
believe them (pp. 178–186). New York, NY: Oxford University Press.
Richey, S. (2017). A birther and a truther: The influence of the authoritarian personality on conspiracy beliefs. Politics &
Policy, 45(3), 465–485. https://doi.org/10.1111/polp.12206
Robertson, D. G. (2015). Silver bullets and seed banks. A material analysis of conspiracist millennialism. Nova Religio:
Journal of Alternative and Emergent Religions, 19(2), 83–99. https://doi.org/10.1525/nr.2015.19.2.83
Rousseau, C., & Jamil, U. (2008). Meaning of 9/11 for two Pakistani communities: From external intruders to the internalisa-
tion of a negative self-image. Anthropology & Medicine, 15(3), 163–174. https://doi.org/10.1080/13648470802355467
Rutjens, B. T., Heine, S. J., Sutton, R., & van Harreveld, F. (in press). Attitudes towards science. Advances in Experimental
Social Psychology. https://doi.org/10.1016/bs.aesp.2017.08.001
Safford, T., Hamilton, L. C., & Whitmore, E. (2017). The Zika virus threat: How concerns about scientists may undermine
efforts to combat the pandemic (Regional Issue Brief 49). Retrieved from the Carsey School of Public Policy, University
of New Hampshire. Retrieved from http://scholars.unh.edu/carsey/299/
Sapountzis, A., & Condor, S. (2013). Conspiracy accounts as intergroup theories: Challenging dominant understandings of
social power and political legitimacy. Political Psychology, 43(5), 731–752. https://doi.org/10.1111/pops.12015
Saunders, K. L. (2017). The impact of elite frames and motivated reasoning on beliefs in a global warming conspiracy: The
promise and limits of trust. Research and Politics, 4(3), 1–9. https://doi.org/10.1177/2053168017717602
Sharma, M., Yadav, K., Yadav, N., & Ferdinand, K. C. (2017). Zika virus pandemic: analysis of Facebook as a social
media health information platform. American Journal of Infection Control, 45(3), 301–302. https://doi.org/10.1016/j.
ajic.2016.08.022
Siddiqui, N. (in press). Who do you believe? Political parties and conspiracy theories in Pakistan. Party Politics. https://doi.
org/10.1177/1354068817749777
Simmons, W. P., & Parsons, S. (2005). Beliefs in conspiracy theories among African Americans: A comparison of elites and
masses. Social Science Quarterly, 86(3), 582–598. https://doi.org/10.1111/j.0038-4941.2005.00319.x
Singh, D. G. (2016). Conspiracy theories in a networked world. Critical Review, 28(1), 24–43. https://doi.org/10.1080/0891
3811.2016.1167404
Smallpage, S. M. (2018). Conspiracy thinking, tolerance, and democracy. In J. E. Uscinski (Ed.), Conspiracy theories and the
people who believe them (pp. 187–200). New York, NY: Oxford University Press.
Smallpage, S. M., Enders, A. M., & Uscinski, J. E. (2017). The partisan contours of conspiracy theory beliefs. Research &
Politics, 4, https://doi.org/10.1177/2053168017746554
Soral, W., Cichocka, A., Bilewicz, M., & Marchlewska, M. (2018). The collective conspiracy mentality in Poland. In J. E.
Uscinski (Ed.), Conspiracy theories and the people who believe them (pp. 372–384). New York, NY: Oxford University
Press.
Southwell, B. G., Thorson, E. A., & Sheble, L. (2018). Misinformation and mass audiences. Austin: University of Texas Press.
Spark, A. (2001). Conjuring order: The new world order and conspiracy theories of globalisation. Sociological Review, 48(52),
46–62. https://doi.org/10.1111/j.1467-954X.2000.tb03520.x.
Ståhl, T., & Van Prooijen, J.-W. (2018). Epistemic rationality: Skepticism toward unfounded beliefs requires sufficient cogni-
tive ability and motivation to be rational. Personality and Individual Differences, 122, 155–163. https://doi.org/10.1016/j.
paid.2017.10.026
Stempel, C., Hargrove, T., & Stempel, G. H. (2007). Media use, social structure, and belief in 9/11 conspiracy theories.
Journalism & Mass Communication Quarterly, 84(2), 353–372. https://doi.org/10.1177/107769900708400210
Stieger, S., Gumhalter, N., Tran, U. S., Voracek, M., & Swami, V. (2013). Girl in the cellar: A repeated cross-sectional inves-
tigation of belief in conspiracy theories about the kidnapping of Natascha Kampusch. Frontiers in Psychology, 4(297),
https://doi.org/10.3389/fpsyg.2013.00297
Stojanov, A. (2015). Reducing conspiracy theory beliefs. Psihologija, 48(3), 251–266. https://doi.org/10.2298/PSI1503251S
Sunstein, C. R., & Vermeule, A. (2009). Conspiracy theories: Causes and cures. Journal of Political Philosophy, 17, 202–227.
https://doi.org/10.1111/j.1467-9760.2008.00325.x
Sutton, R. M., & Douglas, K. M. (2014). Examining the monological nature of conspiracy theories. Power, politics, and
paranoia: Why people are suspicious of their leaders. In J.-W. van Prooijen & P. A. M. vanLange (Eds.), Power, politics,
and paranoia: Why people are suspicious of their leaders (pp. 254–272). Cambridge, United Kingdom: Cambridge
University Press.
34 Douglas et al.
Swami, V. (2012). Social psychological origins of conspiracy theories: The case of the Jewish conspiracy theory in Malaysia.
Frontiers in Psychology, 3(280), https://doi.org/10.3389/fpsyg.2012.00280
Swami, V., Barron, D., Weis, L., & Furnham, A. (2018). To Brexit or not to Brexit: The roles of Islamophobia, conspiracist
beliefs, and integrated threat in voting intentions for the United Kingdom European Union Membership Referendum.
British Journal of Psychology, 109, 156–179. https://doi.org/10.1111/bjop.12252
Swami, V., Barron, D., Weis, L., Voracek, M., Stieger, S., & Furnham, A. (2017). An examination of the factorial and con-
vergent validity of four measures of conspiracist ideation, with recommendations for researchers. PLoS ONE, 12(2),
e0172617. https://doi.org/10.1371/journal.pone.0172617
Swami, V., & Coles, R. (2010). The truth is out there: Belief in conspiracy theories. The Psychologist, 23(7), 560–563. Retrieved
from http://www.thepsychologist.org.uk/archive/archive_home.cfm?volumeID=23&editionID=190&ArticleID=1694
Swami, V., Pietschnig, J., Tran, U. S., Nader, I. W., Stieger, S., & Voracek, M. (2013). Lunar lies: The impact of informa-
tional framing and individual differences in shaping conspiracist beliefs about the moon landings. Applied Cognitive
Psychology, 27(1), 71–80. https://doi.org/10.1002/acp.2873
Swami, V., Voracek, M., Stieger, S., Tran, U. S., & Furnham, A. (2014). Analytic thinking reduces belief in conspiracy theo-
ries. Cognition, 133(3), 572–585. https://doi.org/10.1016/j.cognition.2014.08.006
van der Tempel, J., & Alcock, J. E. (2015). Relationships between conspiracy mentality, hyperactive agency detection, and
Schizotypy: Supernatural forces at work? Personality and Individual Differences, 82, 136–141. https://doi.org/10.1016/j.
paid.2015.03.010
Thomas, S. B., & Quinn, S. C. (1991). The Tuskegee Syphilis study, 1932 to 1972: Implications for HIV education and
AIDS risk education programs in the Black community. American Journal of Public Health, 81, 1498–1505. https://doi.
org/10.2105/AJPH.81.11.1498
Thomson, R., Ito, N., Suda, H., Lin, F., Liu, Y., Hayasaka, R., …Wang, Z. (2012, April). Trusting tweets: The Fukushima di-
saster and information source credibility on Twitter . Paper presented at Proceedings of the 9th International Conference
on Information Systems for Crisis Response and Management, Vancouver, Canada.
Thorburn, S., & Bogart, L. M. (2005). Conspiracy beliefs about birth control: Barriers to pregnancy prevention
among African Americans of reproductive age. Health Education & Behavior, 32(4), 474–487. https://doi.
org/10.1177/1090198105276220
Thorson, E. (2015). Belief echoes: The persistent effects of misinformation and corrections. Political Communication, 33(3),
1–21. https://doi.org/10.1080/10584609.2015.1102187
Tingley, D., & Wagner, G. (2018). Solar geoengineering and the chemtrails conspiracy on social media. Palgrave
Communications, 3, 12.
Tversky, A., & Kahneman, D. (1983). Extensional vs. intuitive reasoning: The conjunction fallacy in probability judgment.
Psychological Review, 90(4), 293–3l5. https://doi.org/10.1037/0033-295X.90.4.293
Udani, A., Kimball, D. C., & Fogarty, B. (2018). How local media coverage of voter fraud influences partisan perceptions in
the United States. State Politics & Policy Quarterly, 18, 193–210. https://doi.org/10.1177/1532440018766907
Uscinski, J. E., DeWitt, D., & Atkinson, M. (2018). Conspiracy theories and the Internet. In E. Asprem, A. Dyrendal, &
D. Robinson (Eds.), The Brill handbook of conspiracy theory and contemporary religion (pp. 106–132). Leiden,
Netherlands: Brill.
Uscinski, J. E., Douglas, K. M., & Lewandowsky, S. (2017). Climate change conspiracy theories. Climate Science. https://doi.
org/10.1093/acrefore/9780190228620.013.328
Uscinski, J. E. (2018). Down the rabbit hole we go! In J. E. Uscinski (Ed.), Conspiracy theories and the people who believe
them (pp. 1–32). New York, NY: Oxford University Press.
Uscinski, J. E., Klofstad, C., & Atkinson, M. D. (2016). What drives conspiratorial beliefs? The role of informational cues and
predispositions. Political Research Quarterly, 69(1), 57–71. https://doi.org/10.1177/1065912915621621
Uscinski, J. E., & Olivella, S. (2017). The conditional effect of conspiracy thinking on attitudes toward climate change.
Research & Politics. https://doi.org/10.1177/2053168017743105
Uscinski, J. E., & Parent, J. M. (2014). American conspiracy theories. New York, NY: Oxford University Press.
Vitriol, J. A., & Marsh, J. K. (2018). The illusion of explanatory depth and endorsement of conspiracy beliefs. European
Journal of Social Psychology, 48, 955–969.
Vosoughi, S., Roy, D., & Aral, S. (2018). The spread of true and false news online. Science, 359, 1146–1151. https://doi.
org/10.1126/science.aap9559
Wagner-Egger, P., Delouvée, S., Gauvrit, N., & Dieguez, S. (2018). Creationism and conspiracism share a common teleolog-
ical bias. Current Biology, 28, R867–R868. https://doi.org/10.1016/j.cub.2018.06.072
van der Wal, R. C., Sutton, R. M., Lange, J., & Braga, J. P. N. (2018). Suspicious binds: Conspiracy thinking and tenuous
perceptions of causal connections between co-occurring and spuriously correlated events. European Journal of Social
Psychology, 48, 970–989. doi:10.1002/ejsp.2507
35
Conspiracy Theories
Walker, J. (2018). What we mean when we say “conspiracy theory.” In J. E. Uscinski (Ed.), Conspiracy theories and the peo-
ple who believe them (pp. 53–61). New York, NY: Oxford University Press.
Ward, C., & Voas, D. (2011). The emergence of conspirituality. Journal of Contemporary Religion, 26(1), 103–121. https://
doi.org/10.1080/13537903.2011.539846
Warner, B. R., & Neville-Shepard, R. (2014). Echoes of a conspiracy: Birthers, truthers, and the cultivation of extremism.
Communication Quarterly, 62(1), 1–17. https://doi.org/10.1080/01463373.2013.822407
Watanabe, K. (2018). Conspiracist propaganda: How Russia promotes anti-establishment sentiment online? Paper presented
at the ECPR General Conference, Hamburg, Germany.
Weeks, B. E. (2018). Media and political misperceptions. In B. G. Southwell, E. A. Thorson, & L. Sheble (Eds.), Misinformation
and mass audiences. Austin: University of Texas Press.
Weigmann, K. (2018). The genesis of a conspiracy theory: Why do people believe in scientific conspiracy theories and how
do they spread? EMBO reports e45935. https://doi.org/10.15252/embr.201845935
Whitson, J. A., & Galinsky, A. D. (2008). Lacking control increases illusory pattern perception. Science, 322, 115–117.
https://doi.org/10.1126/science.1159845
Wilson, J. A. (2018). Reducing pseudoscientific and paranormal beliefs in university students through a course in science and
critical thinking. Science & Education, 27, 183–210.
Wood, C., & Finlay, W. M. L. (2008). British National Party representations of Muslims in the month after the London bomb-
ings: Homogeneity, threat, and the conspiracy tradition. British Journal of Social Psychology, 47(4), 707–726. https://
doi.org/10.1348/014466607X264103
Wood, M. J. (2016). Some dare call it conspiracy: Labelling something a conspiracy theory does not reduce belief in it.
Political Psychology, 37(5), 695–705. https://doi.org/10.1111/pops.12285
Wood, M. J. (2017). Conspiracy suspicions as a proxy for beliefs in conspiracy theories: Implications for theory and measure-
ment. British Journal of Psychology, 108, 507–527. https://doi.org/10.1111/bjop.12231
Wood, M. J. (2018). Propagating and debunking conspiracy theories on Twitter during the 2015–2016 Zika virus outbreak.
21 . https://doi.org/10.1089/cyber.2017.0669
Wood, M. J., & Douglas, K. M. (2013). “What about building 7?” A social psychological study of online discussion of 9/11
conspiracy theories. Frontiers in Psychology, 4(409), https://doi.org/10.3389/fpsyg.2013.00409
Wood, M. J., Douglas, K. M., & Sutton, R. M. (2012). Dead and alive: Beliefs in contradictory conspiracy theories. Social
Psychological and Personality Science, 3(6), 767–773. https://doi.org/10.1177/1948550611434786
Yablokov, I. (2018). Fortress Russia: Conspiracy theories in the post-Soviet world. Cambridge, United Kingdom: Polity Press.
YouGov (2016). Retrieved from http://d25d2506sfb94s.cloudfront.net/cumulus_uploads/document/463g4e5e0e/LBCResults_
160614_EUReferendum_W.pdf
Zaller, J. (1992). The nature and origins of mass opinion. Cambridge studies in public opinion and political psychology.
Cambridge, United Kingdom: Cambridge University Press.
Zarefsky, D. (2014). Conspiracy arguments in the Lincoln-Douglas debates. In Rhetorical Perspectives on Argumentation,
Argumentation Library (Vol. 24, pp. 195–209). doi:10.1007/978-3-319-05485-8_16 (Original work published 1984).
Zollo, F., Novak, P. K., Del Vicario, M., Bessi, A., Mozetič, I., Scala, A., … Quattrociocchi, W. (2015). Emotional dynamics
in the age of misinformation. PLoS ONE, 10(9), e0138740. https://doi.org/10.1371/journal.pone.0138740