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Publications (62)
The Triple Dominance Measure (choosing between prosocial, individualistic, and competitive options) and the Slider Measure (“sliding” between various orientations, for example, from individualistic to prosocial) are two widely used techniques to measure social value orientation, that is, the weight individuals assign to own and others’ outcomes in...
Scientists have started to explore whether novel artificial intelligence (AI) tools based on large language models, such as GPT-4, could support the scientific peer review process. We sought to understand (i) whether AI versus human reviewers are able to distinguish between made-up AI-generated and human-written conference abstracts reporting on ac...
The term ‘moral wiggle room’ (MWR) is often used to describe features of social situations that reduce the transparency between behaviors and their consequences. Previous research found that MWR decreases the likelihood of prosocial behavior and inferred that prosocial behavior is driven not only by genuine prosocial preferences but also by the des...
When someone violates a social norm, others may think that some sanction would be appropriate. We examine how the experience of emotions like anger and disgust relate to the judged appropriateness of sanctions, in a pre-registered analysis of data from a large-scale study in 56 societies. Across the world, we find that individuals who experience an...
The emergence of COVID-19 dramatically changed social behavior across societies and contexts. Here we study whether social norms also changed. Specifically, we study this question for cultural tightness (the degree to which societies generally have strong norms), specific social norms (e.g. stealing, hand washing), and norms about enforcement, usin...
Successful cooperation is tightly linked to individuals’ beliefs about their interaction partners, the decision setting, and existing norms, perceptions, and values. This article reviews and integrates findings from judgment and decision-making, social and cognitive psychology, political science, and economics, developing a systematic overview of t...
Does competition affect moral behavior? This fundamental question has been debated among leading scholars for centuries, and more recently, it has been tested in experimental studies yielding a body of rather inconclusive empirical evidence. A potential source of ambivalent empirical results on the same hypothesis is design heterogeneity-variation...
This initiative examined systematically the extent to which a large set of archival research findings generalizes across contexts. We repeated the key analyses for 29 original strategic management effects in the same context (direct reproduction) as well as in 52 novel time periods and geographies; 45% of the reproductions returned results matching...
The study of moral judgements often centres on moral dilemmas in which options consistent with deontological perspectives (that is, emphasizing rules, individual rights and duties) are in conflict with options consistent with utilitarian judgements (that is, following the greater good based on consequences). Greene et al. (2009) showed that psychol...
Nielsen et al. (1) argue that Van Doesum et al. (2) need to consider three points for their interpretation of a positive association between individual-level social mindfulness (SoMi) and environmental performance (EPI) at the country level (3). The association is weaker when 1) it is controlled for GDP and 2) when the data of three countries are r...
In this paper, we present a review of how the various aspects of any study using an eye tracker (such as the instrument, methodology, environment, participant, etc.) affect the quality of the recorded eye-tracking data and the obtained eye-movement and gaze measures. We take this review to represent the empirical foundation for reporting guidelines...
One piece of the puzzle to prosocial behavior is understanding its underlying cognitive and affective processes. We discuss how modeling behavior in social dilemmas can be expanded by integrating cognitive theories and attention-based models of decision processes, and models of affective influences on prosocial decision-making. We review theories s...
Humans are social animals, but not everyone will be mindful of
others to the same extent. Individual differences have been found,
but would social mindfulness also be shaped by one’s location in the
world? Expecting cross-national differences to exist, we examined if
and how social mindfulness differs across countries. At little to no material cost...
Over the past decade, the world has faced an unprecedented refugee crisis. The large number of incoming refugees represents a challenge for host societies and its citizens triggering reactions from a supportive welcome to brusque rejection and hostile behavior toward refugees. In a pre-registered study, we investigated factors that could promote al...
Norm enforcement may be important for resolving conflicts and promoting cooperation. However, little is known about how preferred responses to norm violations vary across cultures and across domains. In a preregistered study of 57 countries (using convenience samples of 22,863 students and non-students), we measured perceptions of the appropriatene...
Across various contexts, older adults demonstrate a positivity effect - an age-related increase in a relative bias toward positive emotional stimuli as compared to negative stimuli. Previous research has demonstrated how this effect can influence decision making processes, specifically information search and choice satisfaction. However, the potent...
We develop a reporting guideline for eye-tracking research in the behavioral sciences. To this end, we coded 215 articles on behavioral decision-making published between 2009 and 2017 and extracted a list of reported items. The coded articles were from a broad range of disciplines linked to judgement and decision making, such as cognitive science,...
Ingroup favoritism and discrimination against outgroups are pervasive in social interactions. To uncover the cognitive processes underlying generosity towards in- and outgroup members, we employ eye-tracking in two pre registered studies. We replicate the well-established ingroup favoritism effect and uncover that ingroup compared to outgroup decis...
Framing influences choice. However, little is known about the underlying mechanisms behind framing effects. We study gain-loss framing in binary modified dictator games. Subjects choose the selfish option more often in the loss frame compared to the gain frame. Recording visual fixations with eye-tracking, we find that dictators focus more on their...
Norm violations (e.g., unfair transgressions) are often met with punishment even by people who are not directly affected. However, punishing a transgressor is not the only option for a bystander to restore justice. Empathic concerns may dictate instead to give a helping hand to a victim. Using a pre‐registered, fully incentivized eye‐tracking study...
Social psychological research is increasingly interested in the cognitive and affective processes underlying human behavior in social environments. To match this emerging interest, social psychology is embracing new methodological approaches. We identify eye-tracking as an unobtrusive, direct and fine-grained process tracing technique with promisin...
In this chapter, we will describe how the analysis of eye movements can be used in the study of the cognitive and neural mechanisms underlying economic decision making. We will first introduce the area of neuroeconomics by describing relevant theories and methods. We will then demonstrate how oculographic methods have been used profitably in this f...
Ingroup favoritism and discrimination against outgroups are pervasive in socialinteractions. To uncover the cognitive processes underlying generosity towards in- and out-group members, we employ eye-tracking in two pre-registered studies. We replicate the well- established ingroup favoritism effect and uncover that in-group compared to out-group de...
The Hagen Cumulative Science Project is a large-scale replication project based on students’ thesis work. In the project, we aim to (i) teach students to conduct the entire research process for conducting a replication according to current open science standards and (ii) contribute to cumulative science by increasing the number of direct replicatio...
Much research on moral judgment is centered on moral dilemmas in which deontological perspectives (i.e., emphasizing rules, individual rights and duties) are in conflict with utilitarian judgements (i.e., following the greater good defined through consequences). A central finding of this field Greene et al. showed that psychological and situational...
According to research studying the processes underlying decisions, a two-channel mechanism connects attention and choices: top-down and bottom-up processes. To identify the magnitude of each channel, we exogenously varied information intake by systematically interrupting participants’ decision processes in Study 1 (N = 116). Results showed that par...
Concerns about the veracity of psychological research have been growing. Many findings in psychological science are based on studies with insufficient statistical power and nonrepresentative samples, or may otherwise be limited to specific, ungeneralizable settings or populations. Crowdsourced research, a type of large-scale collaboration in which...
Recent studies suggest the involvement of episodic memory in value-based decisions as a source of information about subjective values of choice options. We therefore tested the link between age-related memory decline and inconsistencies in value-based decisions in 30 cognitively healthy older adults. Within the pre-registered experiment, the incons...
Concerns have been growing about the veracity of psychological findings. Many findings in psychological science are based on studies with insufficient statistical power and non-representative samples, or may otherwise be limited to specific, ungeneralizable settings or populations. Large-scale collaboration, in which one or more research projects a...
The replication crisis in psychology has led to a fruitful discussion about common research practices and research institutions. We present a set of measures that aim at making science more efficient and research results more reliable by fostering a strategic alignment and the interlocking of all parts of the research process. The recommended chang...
As individuals from different nations increasingly interact with each other, research on national in-group favoritism becomes particularly vital. In a cross-national, large-scale study (N = 915) including representative samples from four Latin American nations (Chile, Peru, Colombia, Venezuela) and the USA, we explore differences regarding national...
In an anonymous 4-person economic game, participants contributed more money to a common project (i.e., cooperated) when required to decide quickly than when forced to delay their decision (Rand, Greene & Nowak, 2012), a pattern consistent with the “social heuristics” hypothesis proposed by Rand and colleagues. The results of studies using time pres...
In an anonymous 4-person economic game, participants contributed more money to a
common project (i.e., cooperated) when required to decide quickly than when forced to delay
their decision (Rand, Greene & Nowak, 2012), a pattern consistent with the “social heuristics”
hypothesis proposed by Rand and colleagues. The results of studies using time pres...
Beginning January 2014, Psychological Science gave authors the opportunity to signal open data and materials if they qualified for badges that accompanied published articles. Before badges, less than 3% of Psychological Science articles reported open data. After badges, 23% reported open data, with an accelerating trend; 39% reported open data in t...
Author
Openness is a core value of scientific practice. The sharing of research materials and data facilitates critique, extension, and application within the scientific community, yet current norms provide few incentives for researchers to share evidence underlying scientific claims. In January 2014, the journal Psychological Science adopted such...
Previous literature has suggested that risky choice patterns in general-and probability weighting in particular-are strikingly different in experience-based as compared with description-based formats. In 2 reanalyses and 3 new experiments, we investigate differences between experience-based and description-based decisions using a parametric approac...
According to self-maintenance theory, people notice their dishonest acts and thus experience ethical dissonance between their misconduct and their positive moral self. In this view, dishonesty is facilitated by justifications that redefine moral boundaries. By contrast, the bounded ethicality approach suggests that biased perception prevents people...
Empirically analyzing empirical evidence
One of the central goals in any scientific endeavor is to understand causality. Experiments that seek to demonstrate a cause/effect relation most often manipulate the postulated causal factor. Aarts et al. describe the replication of 100 experiments reported in papers published in 2008 in three high-ranking...
Supplementary Material: Psychologists Are Open to Change, Yet Wary of Rules
Replicability of findings is at the heart of any empirical science. The aim of this article is to move the current replicability debate in psychology towards concrete recommendations for improvement. We focus on research practices but also offer guidelines for reviewers, editors, journal management, teachers, granting institutions, and university p...
The main goal of our target article was to provide concrete recommendations for improving the replicability of research findings. Most of the comments focus on this point. In addition, a few comments were concerned with the distinction between replicability and generalizability and the role of theory in replication. We address all comments within t...
Whereas classic work in judgment and decision making has focused on the deviation of intuition from rationality,more recent research has focused on the performance of intuition in real-world environments. Borrowing from both approaches, we investigate to which extent competing models of intuitive probabilistic decision making overlap with choices a...
Psychologists must change the way they conduct and report their research-this notion has been the topic of much debate in recent years. One article recently published in Psychological Science proposing six requirements for researchers concerning data collection and reporting practices as well as four guidelines for reviewers aimed at improving the...
Reproducibility is a defining feature of science. However, because of strong incentives for innovation and weak incentives for confirmation, direct replication is rarely practiced or published. The Reproducibility Project is an open, large-scale, collaborative effort to systematically examine the rate and predictors of reproducibility in psychologi...
Reproducibility is a defining feature of science. However, because of strong incentives for innovation and weak incentives for confirmation, direct replication is rarely practiced or published. The Reproducibility Project is an open, large-scale, collaborative effort to systematically examine the rate and predictors of reproducibility in psychologi...
In the last years, research on risky choice has moved beyond analyzing choices only. Models have been suggested that aim to describe the underlying cognitive processes and some studies have tested process predictions of these models. Prominent approaches are evidence accumulation models such as decision field theory (DFT), simple serial heuristic m...
Do decisions from description and from experience trigger different cognitive processes? We investigated this general question using cognitive modeling, eye-tracking, and physiological arousal measures. Three novel findings indeed suggest qualitatively different processes between the two types of decisions. First, comparative modeling indicates tha...
One major statistical and methodological challenge in Judgment and Decision Making research is the reliable identification of individual decision strategies by selection of diagnostic tasks, that is, tasks for which predictions of the strategies differ sufficiently. The more strategies are considered, and the larger the number of dependent measures...
It is a long known problem that the preferential publication of statistically significant results (publication bias) may lead to incorrect estimates of the true effects being investigated. Even though other research areas (e.g., medicine, biology) are aware of the problem, and have identified strong publication biases, researchers in judgment and d...