David Moreau

University of Auckland · School of Psychology

Quantitatively coding open-ended data (e.g., from videos, interviews) can be a rich source of information in psychological research, but reporting practices vary substantially. We provide strategies for improving validity and reliability of coding open-ended data and investigate questionable research practices in this area. First, we systematically...

According to the justified true belief (JTB) account of knowledge, people can truly know something only if they have a belief that is both justified and true (i.e., knowledge is JTB). This account was challenged by Gettier, who argued that JTB does not explain knowledge attributions in certain situations, later called “Gettier-type cases,” wherein...

In their commentary on Hall et al., Buckwalter and Friedman (2024) claimed that the replication should have been interpreted as successful, argued that the researchers’ conclusions were incorrect, and implied that the replication effort was misguided. As a subset of contributors to the Hall et al. replication, we appreciate the opportunity to respo...

Though people usually imagine the typical person as a man rather than a woman, the effect is mixed for racial groups and understudied among traditionally male social groups (e.g., police and criminals) and non-U.S. populations. Results from a survey (N > 5000) collected via a globally distributed laboratory network in over 40 regions demonstrated t...

In psychological science, replicability—repeating a study with a new sample achieving consistent results (Parsons et al., 2022)—is critical for affirming the validity of scientific findings. Despite its importance, replication efforts are few and far between in psychological science with many attempts failing to corroborate past findings. This scar...

Do toddlers and adults engage in spontaneous Theory of Mind (ToM)? Evidence from anticipatory looking (AL) studies suggests they do. But a growing body of failed replication studies raised questions about the paradigm’s suitability, urging the need to test the robustness of AL as a spontaneous measure of ToM. In a multi-lab collaboration we examine...

Though verbal rehearsal is a frequently endorsed strategy for remem�bering short lists among adults, there is ambiguity around when children deploy it, and what circumstantial factors encourage them to rehearse. We recoded data from a recent multilab replication of a serial picture memory task in which children were observed for evidence of tas...

Open science principles are revolutionizing the transparency, reproducibility, and accessibility of research. Meta-analysis has become a key technique for synthesizing data across studies in a principled way; however, its impact is contingent on adherence to open science practices. Here, we outline 9 quick tips for open meta-analyses, aimed at guid...

Terror Management Theory (TMT) proposes that when people are made aware of their own death, they are more likely to endorse cultural values. TMT is a staple of social psychology, being featured prominently in textbooks and the subject of much research. The implications associated with TMT are significant, as its advocates claim it can partially exp...

Blood oxygen level dependent (BOLD) variability (SDBOLD) has emerged as a unique measure of the adaptive properties of neural systems that facilitate fast, stable responding, based on claims that SDBOLD is independent of mean BOLD signal (meanBOLD) and a powerful predictor of behavioral performance. We challenge these two claims. First, the apparen...

Biases in favor of culturally prevalent social ingroups are ubiquitous, but random assignment to arbitrary experimentally created social groups is also sufficient to create ingroup biases (i.e., the minimal group effect; MGE). The extent to which ingroup bias arises from specific social contexts versus more general psychological tendencies remains...

In their replication of Turri et al. (2015; Experiment 1), Hall et al. (2024) identified a key condition difference that was not observed in the original experiment. In their commentary, Buckwalter and Friedman (2024) posited that the evidence presented by Hall et al. should be interpreted as fully replicating Turri et al. While Hall et al. may hav...

Big Team Science (BTS) offers immense potential for comparative cognition research, enabling larger and more diverse sample sizes, promoting open science practices, and fostering global collaboration. However, implementing BTS in comparative cognition also presents unique challenges, such as making comparisons “species fair,” dealing with multi-sit...

Questionable research practices (QRPs) pose a significant threat to the integrity and credibility of scientific research. However, historically, they remain ill-defined and a comprehensive list of QRPs is lacking. The article addresses this concern by defining, collecting, and categorizing QRPs using an expert consensus method. Collaborators of the...

In psychological science, replicability—repeating a study with a new sampleachieving consistent results (Parsons et al., 2022)—is critical for affirming the validity of scientific findings. Despite its importance, replication efforts are few and far between in psychological science with many attempts failing to corroborate past findings. This scarc...

Journal editors have a large amount of power to advance open science in their respective fields by incentivising and mandating open policies and practices at their journals. The Data PASS Journal Editors Discussion Interface (JEDI, an online community for social science journal editors: www.dpjedi.org ) has collated several resources on embedding o...

This effect sizes and confidence intervals collaborative guide aims to provide students and early-career researchers with hands-on, step-by-step instructions for calculating effect sizes and confidence intervals for common statistical tests used in psychology, social sciences and behavioral sciences, particularly when original data are not availabl...

Mobile electroencephalography and magnetoencephalography technology have the potential to revolutionize the study of motor expertise by providing real-time brain activity data in a noninvasive and portable manner. In the context of sports, these recording techniques have already been used in various applications such as mental fatigue monitoring, c...

Open-ended data are rich sources of information in psychological research, but reporting practices differ substantially. Here, we assess current reporting practices for quantitative coding of open-ended data, provide strategies for making it more valid and reliable, and investigate questionable research practices in this area. First, we systematica...

The open-science movement is driven by the desire to increase research transparency, accessibility, and equity in conducting, reporting, and sharing research. Because open science aims to enable access and inclusion, and because incivility impedes both access and inclusion, many open-science organizations endorse the need for interpersonal civility...

Measuring eye movements remotely via the participant's webcam promises to be an attractive methodological addition to in‐person eye‐tracking in the lab. However, there is a lack of systematic research comparing remote web‐based eye‐tracking with in‐lab eye‐tracking in young children. We report a multi‐lab study that compared these two measures in a...

Physical exercise confers numerous benefits to brain structure, function and cognition, however considerable individual variability exists in these effects. Emerging paradigms focused on intraindividual dynamics provide novel opportunities to map and leverage individualized neural architectures underlying exercise-cognition relationships. Progress...

We sympathize with many of the points Burt makes in challenging the value of genetics to advance our understanding of social science. Here, we discuss how recent reflections on epistemic validity in the behavioral sciences can further contribute to a reappraisal of the role of sociogenomics to explain and predict human traits, aptitudes, and achiev...

Conversations about the internationalization of psychological sciences have occurred over a few decades with very little progress. Previous work shows up to 95% of participants in the studies published in mainstream journals are from Western, Educated, Industrialized, Rich, Democratic nations. Similarly, a large proportion of authors are based in N...

In scientific communication, figures are typically rendered as static displays. This often prevents active exploration of the underlying data, for example, to gauge the influence of particular data points or of particular analytic choices. Yet modern data-visualization tools, from animated plots to interactive notebooks and reactive web application...

Most of the commonly used and endorsed guidelines for systematic review protocols and reporting standards have been developed for intervention research. These excellent guidelines have been adopted as the gold-standard for systematic reviews as an evidence synthesis method. In the current paper, we highlight some issues that may arise from adopting...

Previous studies have demonstrated a positive relationship between aerobic fitness and cognitive control, the ability to inhibit distractions (conflict control) or impulsive actions (response inhibition). However, it is unknown whether these sub-processes and their underlying information processing capacity are differentially related to aerobic fit...

Journal editors have a large amount of power to advance open science in their respective fields by incentivizing and mandating open policies and practices at their journals. The Data PASS Journal Editors Discussion Interface (JEDI, an online community for social science journal editors: www.dpjedi.org) has collated several resources on embedding op...

Mental simulation theories of language comprehension propose that people automatically create mental representations of objects mentioned in sentences. Mental representation is often measured with the sentence-picture verification task, wherein participants first read a sentence that implies the object property (i.e., shape and orientation). Partic...

Journal editors have a large amount of power to advance open science in their respective fields by incentivising and mandating open policies and practices at their journals. The Data PASS Journal Editors Discussion Interface (JEDI, an online community for social science journal editors: www.dpjedi.org) has collated several resources on open science...

In recent years, the scientific community has called for improvements in the credibility, robustness and reproducibility of research, characterized by increased interest and promotion of open and transparent research practices. While progress has been positive, there is a lack of consideration about how this approach can be embedded into undergradu...

General Audience Summary Can imagination increase intentions to help others? Recent evidence suggests it can act to increase one’s willingness to help a stranger in need. Thus, imagination could be a key tool for increasing prosocial intentions in people across the globe. However, existing studies demonstrating this effect are primarily from the Un...

Sport expertise has been shown to modulate the cognitive advantage in open-skill athletes, with evidence for a greater advantage for athletes practicing interceptive sports relative to strategic sports. However, this conclusion is solely based on central tendency measures such as accuracy or mean reaction time (RT), dismissing important information...

Mobile electroencephalography (EEG) and magnetoencephalography (MEG) technology have the potential to revolutionize the study of motor expertise by providing real-time brain activity data in a non-invasive and portable manner. In the context of sports, these recording techniques have already been used in various applications such as mental fatigue...

Conducting a replication study is a valuable way for undergraduate students to learn about the scientific process and gain research experience. By promoting the evaluation of existing studies to confirm their reliability, replications play a unique, though often underappreciated, role in the scientific enterprise. Involving students early in this p...

Previous research has found that episodic simulation of events of helping others can effectively enhance intentions to help the same person involved and the identical situational context as the imagined scenarios. However, to date, no study has examined systematically whether this ‘prosocial simulation effect’ can be transferred to response scenari...

In response to the COVID-19 pandemic, the Psychological Science Accelerator coordinated three large-scale psychological studies to examine the effects of loss-gain framing, cognitive reappraisals, and autonomy framing manipulations on behavioral intentions and affective measures. The data collected (April to October 2020) included specific measures...

BOLD variability (SDBOLD) has emerged as a unique measure of the adaptive properties of neural systems that facilitate fast, stable responding, based on claims that SDBOLD is independent of mean BOLD signal (meanBOLD) and a powerful predictor of behavioural performance. We challenge these two claims. First, the apparent independence of SDBOLD and m...

A common challenge in developmental research is the amount of incomplete and missing data that occurs from respondents failing to complete tasks or questionnaires, as well as from disengaging from the study (i.e., attrition). This missingness can lead to biases in parameter estimates and, hence, in the interpretation of findings. These biases can b...

Measuring eye movements remotely via the participant’s webcam promises to be an attractive methodological addition to in-person eye-tracking in the lab. However, there is a lack of systematic research comparing remote web-based eye-tracking with in-lab eye-tracking in young children. We report a multi-lab study that compared these two measures in a...

Much of our basic understanding of cognitive and social processes in infancy relies on measures of looking time, and specifically on infants’ visual preference for a novel or familiar stimulus. However, despite being the foundation of many behavioral tasks in infant research, the determinants of infants’ visual preferences are poorly understood, an...

Although the acute effect of exercise on behavioral cognitive performance is well-documented in the exercise psychology field, a comprehensive evaluation on neuroelectric brain activity that determines healthy cognitive functioning following acute exercise is lacking. This systematic review included 39 studies examining acute exercise effects on P3...

The biological sciences community is increasingly recognizing the value of open, reproducible and transparent research practices for science and society at large. Despite this recognition, many researchers fail to share their data and code publicly. This pattern may arise from knowledge barriers about how to archive data and code, concerns about it...

In a commentary on Moreau (2022), Kira (2023) emphasizes the importance of clarifying the conceptual basis of cognitive interventions and discusses a number of adverse circumstances known to impair cognitive function. In this reply, I focus on three points of clarification. First, I contend that one needs to make a distinction between interventions...

Do individuals learn more effectively when given progressive or variable problem-solving experience, relative to consistent problem-solving experience? We investigated this question using a Rubik’s Cube paradigm. Participants were randomly assigned to a progression-order condition, where they practiced solving three progressively more difficult Rub...

The COVID-19 pandemic (and its aftermath) highlights a critical need to communicate health information effectively to the global public. Given that subtle differences in information framing can have meaningful effects on behavior, behavioral science research highlights a pressing question: Is it more effective to frame COVID-19 health messages in t...

In a commentary on Moreau (2022), Kira (2022) emphasizes the importance of clarifying the conceptual basis of cognitive interventions, and discusses a number of adverse circumstances known to impair cognitive function. In this reply, I focus on three points of clarification. First, I contend that one needs to make a distinction between intervention...

We sympathize with many of the points Burt makes in challenging the value of genetics to advance our understanding of social science. Here, we discuss how recent reflections on epistemic validity in the behavioral sciences can further contribute to a reappraisal of the role of sociogenomics to explain and predict human traits, aptitudes, and achiev...

The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about...

Scientific theories reflect some of humanity's greatest epistemic achievements. The best theories motivate us to search for discoveries, guide us towards successful interventions, and help us to explain and organize knowledge. Such theories require a high degree of specificity, and specifying them requires modeling skills. Unfortunately, in psychol...

A single bout of cardiovascular exercise can have a cascade of physiological effects, including increased blood flow to the brain. This effect has been documented across multiple modalities, yet studies have reported mixed findings. Here, we systematically review evidence for the acute effect of cardiovascular exercise on cerebral blood flow across...

Conversations about the internationalization of psychological science have occurred over a few decades with very little progress. Previous work shows up to 95% of participants in mainstream journal studies are from Western, Educated, Industrialized, Rich, Democratic (WEIRD) nations. Similarly, a large proportion of authors are based in North Americ...

Previous work has found mentally simulating events of helping others can enhance prosocial intentions. However, to date, this ‘prosocial simulation effect’ (PSE) has only been demonstrated in North America. We provide the first pre-registered replication of PSE outside of North America in a New Zealand sample, following existing protocols (Experime...

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...

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...

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 relation between religiosity and well-being is one of the most researched topics in the psychology of religion, yet the directionality and robustness of the effect remains debated. Here, we adopted a many-analysts approach to assess the robustness of this relation based on a new cross-cultural dataset (N = 10, 535 participants from 24 countries...

At the beginning of 2020, COVID-19 became a global problem. Despite all the efforts to emphasize the relevance of preventive measures, not everyone adhered to them. Thus, learning more about the characteristics determining attitudinal and behavioral responses to the pandemic is crucial to improving future interventions. In this study, we applied ma...

This preregistration template guides researchers who wish to preregister their EEG projects, more specifically studies investigating event-related potentials (ERPs) in the sensor space.

The biological sciences community is increasingly recognizing the value of open, reproducible, and transparent research practices for science and society at large. Despite this recognition, many researchers remain reluctant to share their data and code publicly. This hesitation may arise from knowledge barriers about how to archive data and code, c...

A recent Registered Replication Report (RRR) of the development of verbal rehearsal during serial recall revealed that children verbalized at younger ages than previously thought, but did not identify sources of individual differences. Here, we use mediation analysis to reanalyze data from the 934 children ranging from 5 to 10 years old from the RR...

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...

Semantic priming has been studied for nearly 50 years across various experimental manipulations and theoretical frameworks. These studies provide insight into the cognitive underpinnings of semantic representations in both healthy and clinical populations; however, they have suffered from several issues including generally low sample sizes and a la...

Significance Communicating in ways that motivate engagement in social distancing remains a critical global public health priority during the COVID-19 pandemic. This study tested motivational qualities of messages about social distancing (those that promoted choice and agency vs. those that were forceful and shaming) in 25,718 people in 89 countries...

The COVID-19 pandemic has affected all domains of human life, including the economic and social fabric of societies. One of the central strategies for managing public health throughout the pandemic has been through persuasive messaging and collective behavior change. To help scholars better understand the social and moral psychology behind public h...

In recent years, the scientific community has called for improvements in the credibility, robustness, and reproducibility of research, characterized by higher standards of scientific evidence, increased interest in open practices, and promotion of transparency. While progress has been positive, there is a lack of consideration about how this approa...

Psychological constructs are necessary abstractions to operationalize otherwise intractable entities. However, the way constructs are defined and refined over time introduces notable bias into models of behavior, which prevents effective knowledge building within and across subfields.

Psychological constructs are necessary abstractions to operationalize otherwise intractable entities. However, the way constructs are defined and refined over time introduces notable bias into models of behaviour, which prevents effective knowledge building within and across subfields

Yarkoni's analysis clearly articulates a number of concerns limiting the generalizability and explanatory power of psychological findings, many of which are compounded in infancy research. ManyBabies addresses these concerns via a radically collaborative, large-scale and open approach to research that is grounded in theory-building, committed to di...

Open scholarship has transformed research, and introduced a host of new terms in the lexicon of researchers. The ‘Framework for Open and Reproducible Research Teaching’ (FORRT) community presents a crowdsourced glossary of open scholarship terms to facilitate education and effective communication between experts and newcomers.

Changing collective behaviour and supporting non-pharmaceutical interventions is an important component in mitigating virus transmission during a pandemic. In a large international collaboration (Study 1, N = 49,968 across 67 countries), we investigated self-reported factors associated with public health behaviours (e.g., spatial distancing and str...

A number of popular research areas suggest that cognitive performance can be manipulated via relatively brief interventions. These findings have generated a lot of traction, given their inherent appeal to individuals and society. However, recent evidence indicates that cognitive abilities might not be as malleable as preliminary findings implied an...

Recently, there has been a growing emphasis on embedding open and reproducible approaches into research. One essential step in accomplishing this larger goal is to embed such practices into undergraduate and postgraduate research training. However, this often requires substantial time and resources to implement. Also, while many pedagogical resourc...