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The Generic Conspiracist Beliefs Scale – 5: A short-form measure of conspiracist ideation

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Abstract

The Generic Conspiracist Beliefs Scale (GCB-15) is a reliable and valid measure of conspiracist ideation, but it is also inefficient. At 15 items, the GCB-15 can take upwards of four minutes to complete. Here we introduce the GCB-5—a 5-item, short form of the GCB-15. Across five studies, we use self- and informant-report methods to demonstrate that the GCB-5 is a reliable, criterion-valid, and construct-valid measure of conspiracist ideation. In the final study, we further provide evidence that the GCB-5 has promise for addressing novel research questions. Specifically, we show that people high in conspiracist ideation—as assessed by the GCB-5—are more accepting of the use of nuclear weapons and other forms of so-called “virtuous violence” (e.g., anti-abortion legislation).

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Previous research has established the principle that situations can affect the expression of personality, though it is not well-understood what specific patterns characterize this change across situations. We explore the possibility of contrasting situation themes that influence personality expression, implying that there is a change in personality expression initiated by a transition between two distinct types of situations. 474 undergraduate students completed a questionnaire in which 15 personality tendencies were juxtaposed with each of 41 differing situations. Our findings replicated previous research indicating that Honesty/Propriety yields the least variance between situations while Emotional Stability and Extraversion yield the most variance. Principal components analysis was used to examine cross-situational variability with four models already present in psychological literature, each with contrasting poles. We found that our models of threat vs. reward, positive affect vs. negative affect, and agency vs. no agency were clear sources of cross-situational variability. Taken together, these results indicate ways of improving our understanding of patterns of change in personality expression across a variety of commonly occurring situations.
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It remains unclear why those scoring high on certain aspects of the Dark Tetrad (i.e., Machiavellianism, narcissism, psychopathy, and sadism) are more inclined to believe in conspiracy theories. The present study (N = 474) aimed to clarify this issue by investigating the associations between the facets of the Dark Tetrad traits and conspiracist ideation in the context of five potential mediators. At least one facet of every Dark Tetrad trait was associated with conspiracist ideation, and nearly every association could be attributed, in part, to the tendency for those with aversive personalities to entertain odd beliefs, be fatalistic, and distrust others. Contrary to what the prior research might suggest, these results indicate that the conspiracist ideation found among those scoring high in the Dark Tetrad traits is the result of some shared feature of the traits rather than a feature that is unique to each trait.
Article
Is there a point within a self-report questionnaire where participants will start responding carelessly? If so, then after how many items do participants reach that point? And what can researchers do to encourage participants to remain careful throughout the entirety of a questionnaire? We conducted two studies (Study 1 N = 358; Study 2 N = 129) to address these questions. Our results found (a) consistent evidence that participants responded more carelessly as they progressed further into a questionnaire, (b) mixed evidence that participants who were warned that carelessness would be punished displayed smaller increases in carelessness, and (c) mixed evidence that increases in carelessness were greater within an unproctored online study (Study 1) than within a proctored laboratory study (Study 2). These findings help address when and why careless responding is likely to occur, and they suggest effective preventive strategies.
Article
Perceived lack of control is widely believed to motivate, at least partly, belief in conspiracy theories. We question the theoretical foundations of this belief and meta‐analyze existing published and unpublished studies to assess the overall effect of lack of control on conspiracy beliefs. The overall effect was small and not statistically significant (d = ‐ 0.05), and was not moderated by comparison group (baseline vs control affirmation), type of manipulation used to threaten control, inclusion of a manipulation check, or sample type. However, the predicted effect of control was more likely to be observed when beliefs were measured in terms of specific conspiracy theories, rather than as general or abstract claims. Overall, the present studies to date offer limited support for the hypothesis that conspiracy beliefs arise as a compensatory control.
Article
We provide a brief overview of the Turnaway Study, the first study to collect longitudinal data on individual women who received versus were denied a wanted abortion in the United States. The study team collected data on nearly 1,000 women seeking an abortion from 30 facilities around the country and followed them for 5 years. We discuss some of the main findings from the study related to the health, labor, and human capital outcomes of the women who were denied abortions and gave birth. We conclude by describing future opportunities to learn from the study with new linkages to administrative data.
Article
We tested the hypothesis that people show generality in their endorsement of unsubstantiated claims, employing more types of measures than used in previous studies. We found that measures of generic conspiracist ideation, specific fictitious conspiracy theory and false conspiracy theory beliefs were all strongly and positively intercorrelated. A multiple regression analysis revealed that the measures of specific false and fictitious conspiracy theories both significantly predicted generic conspiracist ideation. A second broader test of the generality hypothesis showed that these measures of false and fictitious conspiracy belief were positively intercorrelated with measures of psychological misconceptions, pseudoscience, poorly‐supported psychological practices, and paranormal beliefs. However, the measures of misconceptions and pseudoscience displayed substantially lower correlations. The results provide support for the generality of acceptance of a wider variety of unsubstantiated claims than used in previous studies, but also suggest differences in the types endorsed based on the kind of knowledge and content measured.
Article
Effect sizes are underappreciated and often misinterpreted—the most common mistakes being to describe them in ways that are uninformative (e.g., using arbitrary standards) or misleading (e.g., squaring effect-size rs). We propose that effect sizes can be usefully evaluated by comparing them with well-understood benchmarks or by considering them in terms of concrete consequences. In that light, we conclude that when reliably estimated (a critical consideration), an effect-size r of .05 indicates an effect that is very small for the explanation of single events but potentially consequential in the not-very-long run, an effect-size r of .10 indicates an effect that is still small at the level of single events but potentially more ultimately consequential, an effect-size r of .20 indicates a medium effect that is of some explanatory and practical use even in the short run and therefore even more important, and an effect-size r of .30 indicates a large effect that is potentially powerful in both the short and the long run. A very large effect size (r = .40 or greater) in the context of psychological research is likely to be a gross overestimate that will rarely be found in a large sample or in a replication. Our goal is to help advance the treatment of effect sizes so that rather than being numbers that are ignored, reported without interpretation, or interpreted superficially or incorrectly, they become aspects of research reports that can better inform the application and theoretical development of psychological research.
Article
The present study investigates the validity and utility of the German adaptations of the two short forms of the Big Five Inventory-2 (BFI-2), the 30-item BFI-2-S, and the 15-item BFI-2-XS, developed by Soto and John (2017b). Both scales assess the Big Five domains. The BFI-2-S allows, in addition, the brief assessment of three facets per domain. Based on a large and heterogeneous sample, we show that the psychometric properties of these adapted short scales are consistent with those of the Anglo-American source versions, and we demonstrate substantial convergence between the adaptations and the source versions. Extending the original scale development study, we demonstrate high retest stability of the scales and their facets. Our results clearly indicate the construct and criterion validity of the two scales: Both show substantial convergence with the NEO-PI-R domain scales. Moreover, the distinctive correlation pattern found between the facets of the BFI-2 and the NEO-PI-R could be replicated for the facets of the BFI-2-S. Furthermore, we show that the domain scales of both instruments are associated in the hypothesized directions with important life outcomes, such as life satisfaction and intelligence, and that the facets of the BFI-2-S have incremental validity for predicting these outcomes.
Article
Research on individual-difference factors predicting belief in conspiracy theories has proceeded along several independent lines that converge on a profile of conspiracy believers as individuals who are relatively untrusting, ideologically eccentric, concerned about personal safety, and prone to perceiving agency in actions and profundity in bullshit. The present research represents the first attempt at an integrative approach to testing the independent contributions of these diverse factors to conspiratorial thinking. Two studies (N = 1,253) found that schizotypy, dangerous-world beliefs, and bullshit receptivity independently and additively predict endorsement of generic (i.e., nonpartisan) conspiracy beliefs. Results suggest that "hyperactive" agency detection and political orientation (and related variables) might also play a role. The studies found no effects of situational threats (mortality salience or a sense of powerlessness) - though it remains to be seen whether real-world instantiations of situational threats might move some people to seek refuge in conspiratorial ideation.
Article
This study sought to replicate previous work showing relationships between components of schizotypy and conspiracist beliefs, and extend it by examining the mediating role of cognitive processes. An international online sample of 411 women and men (mean age = 35.41 years) completed measures of the schizotypal facets of Odd Beliefs or Magical Thinking and Ideas of Reference, conspiracist beliefs, and cognitive processes related to need for cognition, analytic thinking, and cognitive insight. Path analysis confirmed the associations between both schizotypal facets and conspiracist beliefs in the present sample. Confirmatory evidence was found for the association between analytic thinking and conspiracist beliefs, and results also suggested an association between cognitive insight and conspiracist beliefs. Cognitive insight also mediated the link between Odd Beliefs or Magical Thinking and Ideas of Reference with conspiracist beliefs. However, analytic thinking provided a mediating link to conspiracy ideation for Odd Beliefs or Magical Thinking and not Ideas of Reference. Finally, there was an association between Odd Beliefs or Magical Thinking and need for cognition, but this path did not extend to conspiracist beliefs. These results suggest possible mediating roles for analytic thinking and self-certainty between schizotypy and conspiracist beliefs.
Article
In the current research, we investigated whether belief in conspiracy theories satisfies people’s need for uniqueness. We found that the tendency to believe in conspiracy theories was associated with the feeling of possessing scarce information about the situations explained by the conspiracy theories (Study 1) and higher need for uniqueness (Study 2). A further two studies using two different manipulations of need for uniqueness (Studies 3 and 4), showed that people in a high need for uniqueness condition displayed higher conspiracy belief than people in a low need for uniqueness condition. This conclusion is strengthened by a small-scale meta-analysis. These studies suggest that conspiracy theories may serve people’s desire to be unique, highlighting a motivational underpinning of conspiracy belief.
Article
Research on the psychology of conspiracy theories has shown recent steps towards a standardization of measures. The present article seeks to continue that trend by presenting the Flexible Inventory of Conspiracy Suspicions (FICS), a questionnaire template that can be adapted to measure suspicions of a conspiracy around nearly any topic of public interest. Compared to conspiracy belief measures that ask about specific theories on a given topic, the FICS is worded in such a way as to provide relatively stable validity across time and cultural context. Using a hybrid approach incorporating classical test theory and Rasch scaling, three questionnaire studies on Mechanical Turk demonstrate the validity of the FICS in measuring conspiracy suspicions regarding 9/11, vaccine safety, and US elections, with good psychometric properties in most situations. However, the utility of the FICS is limited in the case of climate change due to the existence of two opposing conspiracy theories that share essentially no common assumptions (‘climate change is a hoax’ vs. ‘there is a conspiracy to make people believe that climate change is a hoax’). The results indicate that the FICS is a reliable and valid measure of conspiracy suspicions within certain parameters, and suggest a three-level model that differentiates general conspiracist ideation, relatively vague conspiracy suspicions, and relatively specific conspiracy beliefs.
Article
Individual differences researchers very commonly report Pearson correlations between their variables of interest. Cohen (1988) provided guidelines for the purposes of interpreting the magnitude of a correlation, as well as estimating power. Specifically, r = 0.10, r = 0.30, and r = 0.50 were recommended to be considered small, medium , and large in magnitude, respectively. However, Cohen's effect size guidelines were based principally upon an essentially qualitative impression, rather than a systematic, quantitative analysis of data. Consequently, the purpose of this investigation was to develop a large sample of previously published meta-analytically derived correlations which would allow for an evaluation of Cohen's guidelines from an empirical perspective. Based on 708 meta-analytically derived correlations, the 25th, 50th, and 75th percentiles corresponded to correlations of 0.11, 0.19, and 0.29, respectively. Based on the results, it is suggested that Cohen's correlation guidelines are too exigent, as b3% of correlations in the literature were found to be as large as r = 0.50. Consequently, in the absence of any other information, individual differences researchers are recommended to consider correlations of 0.10, 0.20, and 0.30 as relatively small, typical, and relatively large, in the context of a power analysis, as well as the interpretation of statistical results from a normative perspective.