The enactment effect is the phenomenon that physically performing an action represented by a word or phrase (e.g., clap, clap your hands) results in better memory than does simply reading it. We examined data from three different methodological approaches to provide a comprehensive review of the enactment effect across 145 behavioral, 7 neuroimaging, and 31 neurological patient studies. Boosts in memory

Based on 378 studies, 541 independent samples, and over 34,000 participants, the current meta-analysis aimed to explore the associations between cognition and reading difficulties (RD). Results showed that compared with age-matched typically developing (TD) peers, RD showed deficits across processing speed, short-term memory, attention, working memory, inhibition, switching, visuospatial skills, and

Bullying is one of the most common peer-relational problems experienced by children and adolescents worldwide. One reason bullying is so widespread is that it is a dynamic, group process that involves multiple roles—namely, bullies, followers, victims, bully-victims, defenders, and outsiders. Given the profoundly negative impact of exposure to bullying on well-being across development, researchers

In recent years, a rapidly growing literature has shed light on important costs and benefits of prosocial motivation in the workplace. However, researchers have studied prosocial motivation using various labels, conceptualizations, and operationalizations, leaving this body of knowledge fragmented. In this study, we contribute to the literature by providing an integrated framework that organizes extant

Cooperation among strangers has been hypothesized to have declined in the United States over the past several decades, an alarming trend that has potential far-reaching societal consequences. To date, most research that supports a decline in cooperation has relied on self-report measures or archival data. Here, we utilize the history of experimental research on cooperation in situations involving conflicting

Past research syntheses provided evidence that personality traits are both stable and changeable throughout the life span. However, early meta-analytic estimates were constrained by a relatively small universe of longitudinal studies, many of which tracked personality traits in small samples over moderate time periods using measures that were only loosely related to contemporary trait models such as

Meta-analyses suggest that mindfulness interventions have positive effects on mental health. Yet, how mindfulness interventions exert their effects is still largely unknown. Self-reported mindfulness may partially mediate the association between mindfulness interventions and change in self-reported mental health. We present the results of a novel application of three-level meta-analysis on the pre–post

Early research on body positions suggested that engaging in certain nonverbal displays can lead to changes in self-report, behavioral, and physiological dependent variables. Still, there has been intense criticism regarding the replicability of these effects. To determine what effects are valid, we conducted a meta-analytic review on body position studies. We used the dominance–prestige framework and

Psychological stress during childhood and adolescence increases risk of health problems across the lifecourse, and inflammation is implicated as an underlying mechanism. To evaluate the viability of this hypothesis, we used meta-analysis to quantify the association between childhood/adolescent stress and inflammation over the lifecourse. Furthermore, we addressed three unresolved conceptual questions:

Academic motivation is an essential predictor of school success in K-12 education. Accordingly, many meta-analyses have examined variables associated with academic motivation. However, a central question remains unanswered: What is the relative strength of the relations of both student variables (achievement, socioemotional variables, and background variables) and instructional variables (teacher variables

Gross motor ability is associated with profound differences in how children experience and interact with their social world. A rapidly growing literature on motor development in autism spectrum disorder (ASD) indicates that autistic individuals exhibit impairment in gross motor skills. However, due to substantial heterogeneity across studies, it remains unclear which gross motor skills are impaired

People recall more information after sleep than after an equally long period of wakefulness. This sleep benefit in episodic memory has been documented in almost a century of research. However, an integrative review of hypothesized underlying processes, a comprehensive quantification of the benefit, and a systematic investigation of potential moderators has been missing so far. Here, we address these

Cognition plays a key role in sports performance. This meta-analytic review synthesizes research that examined the relationship between cognitive functions, skills, and sports performance. We identified literature by searching Cochrane Library, APA PsycINFO, PubMed, and Web of Science. We included studies conducted on competitive athletes, assessed cognitive prerequisites, and included performance

Given limitations in the amount of visual information that a person can simultaneously process through to conscious perception, selective visual attention is necessary. Visual signals in the environment aid this selection process by triggering reflexive shifts of covert attention to locations of potential importance. One such signal appears to be others’ eye gaze. Indeed, a gaze-cueing effect, whereby

Although dishonesty is often a social phenomenon, it is primarily studied in individual settings. However, people frequently collaborate and engage in mutual dishonest acts. We report the first meta-analysis on collaborative dishonesty, analyzing 87,771 decisions (21 behavioral tasks; k = 123; nparticipants = 10,923). We provide an overview of all tasks used to measure collaborative dishonesty, and

Recent evidence demonstrates rising self-oriented, other-oriented, and socially prescribed perfectionism among young people from the United States, United Kingdom, and Canada (Curran & Hill, 2019). One reason why perfectionism is increasing may be that rising competitiveness and individualism are requiring parents to engage in anxious, overly involved, and/or overly controlling forms of parenting.

Research suggests that sleep deprivation both before and after encoding has a detrimental effect on memory for newly learned material. However, there is as yet no quantitative analyses of the size of these effects. We conducted two meta-analyses of studies published between 1970 and 2020 that investigated effects of total, acute sleep deprivation on memory (i.e., at least one full night of sleep deprivation):

Episodic memory deficits have increasingly been recognized as a cognitive feature of depression. To quantify these deficits and determine how they are moderated by various tasks (e.g., stimulus valence) and participant (e.g., age, depression diagnosis) variables, we conducted a three-level meta-analysis on 995 effect sizes derived from 205 studies with 236 unique comparisons between depressive and

Expertise refers to outstanding skill or ability in a particular domain. In the domain of emotion, expertise refers to the observation that some people are better at a range of competencies related to understanding and experiencing emotions, and these competencies may help them lead healthier lives. These individual differences are represented by multiple constructs including emotional awareness, emotional

Early temperamental reactivity and attachment security are key predictors of children’s social competence with peers. Leveraging meta-analytic evaluation of the significance of early attachment for social competence already available (Groh et al., 2014), this quantitative review examined the significance of early temperamental reactivity for social competence with peers and compared the strength of

Modern nosologies (e.g., International Classification of Diseases, 11th edition [ICD-11], Diagnostic and Statistical Manual of Mental Disorders, 5th edition [DSM–5]) for alcohol use disorder (AUD) and dependence prioritize reliability and clinical presentation over etiology, resulting in a diagnosis that is not always strongly grounded in basic theory and research. Within these nosologies, DSM–5 AUD

Agency and communion are gender-stereotypical traits, which were explicitly designed to capture desirable attributes of men and women, respectively. Whereas the existence of gender gaps in agency and communion is commonly known, it remains unknown what the average magnitude, stability (over time and developmental age), and variability (across cultures, sampling strategies, and measures) of these gender

Decades of research has examined the difficulty that people with psychiatric diagnoses have in recalling specific autobiographical memories of events that lasted less than a day. Instead, they seem to retrieve general events that have occurred many times or which occurred over longer periods of time, termed overgeneral memory. We present the first transdiagnostic meta-analysis of memory specificity/overgenerality

Previous research has not led to any agreement as to the normative trajectory of relationship satisfaction. In this systematic review and meta-analysis, we summarize the available evidence on development of relationship satisfaction, as a function of age and relationship duration. Data came from 165 independent samples including 165,039 participants. In the analyses, we examined cross-sectional information

Schizotypy refers to a multidimensional construct that spans a range of cognitive, behavioral, and personality features, representing liability to psychosis on a continuum between health and illness. Schizotypy has been associated with functional and structural brain alterations as potential intermediate phenotypes on the developmental path to psychosis. We scanned the literature between February 2019

Research on psychological flow is well established, although criticisms remain regarding conceptual and measurement issues associated with the construct. This scoping review maps flow-related research across scientific disciplines, examining the conceptualization, measurement instruments, and outcomes of flow between 2012 and 2019. Across 236 sources that met the review criteria, 108 different flow-related

Judged by the sheer amount of global media coverage, loneliness rates seem to be an increasingly urgent societal concern. From the late 1970s onward, the life experiences of emerging adults have been changing massively due to societal developments such as increased fragmentation of social relationships, greater mobility opportunities, and changes in communication due to technological innovations. These

The high global prevalence of depression, together with the recent acceleration of remote care owing to the COVID-19 pandemic, has prompted increased interest in the efficacy of digital interventions for the treatment of depression. We provide a summary of the latest evidence base for digital interventions in the treatment of depression based on the largest study sample to date. A systematic literature

Reports an error in "The relationship between religiousness and health among sexual minorities: A meta-analysis" by G. Tyler Lefevor, Edward B. Davis, Jaqueline Y. Paiz and Abigail C. P. Smack (Psychological Bulletin, Advanced Online Publication, Apr 01, 2021, np). In the article, there was an error in the calculation of the effect sizes from one study. The three effect sizes for Wolff et al. (2016)

For decades, psychological research has examined the extent to which children's and adolescents' behavior is influenced by the behavior of their peers (i.e., peer influence effects). This review provides a comprehensive synthesis and meta-analysis of this vast field of psychological science, with a goal to quantify the magnitude of peer influence effects across a broad array of behaviors (externalizing

A large body of research has documented Weiner's theory as it applies to achievement contexts, highlighting the role of the causal dimensions (locus of causality, stability, and controllability) as antecedents of specific emotional, cognitive, and behavioral reactions. The aim of this article is to address important, and as yet unanswered questions, by focusing on the relationship between these causal

Sociopsychological theorizing and research on collective action (e.g., social protests) has mushroomed over the last decade, studying a wide variety of groups, contexts, and cultures. Through a quantitative research synthesis of four motivations for collective action (1,235 effects from 403 samples; total N = 123,707), we summarize and synthesize this body of research into the dual chamber model, a

Considerable literature on the role of attentional focus in motor performance and learning has accumulated for over two decades. We report the results of comprehensive meta-analyses that address the impact of an external focus (EF, on intended movement effects) versus internal focus (IF, on movements of body parts) of attention on the performance and learning of motor skills. Values of effect sizes

Visual attention is a fundamental aspect of most everyday decisions, and governments and companies spend vast resources competing for the attention of decision makers. In natural environments, choice options differ on a variety of visual factors, such as salience, position, or surface size. However, most decision theories ignore such visual factors, focusing on cognitive factors such as preferences

Mathematical thinking is in high demand in the global market, but approximately 6 percent of school-age children across the globe experience math difficulties (Shalev et al., 2000). The home math environment (HME), which includes all math-related activities, attitudes, beliefs, expectations, and utterances in the home, may be associated with children's math development. To examine the relation between

Within just 7 years, behavioral decision research in psychology underwent a dramatic change: In 1967, Peterson and Beach (1967) reviewed more than 160 experiments concerned with people's statistical intuitions. Invoking the metaphor of the mind as an intuitive statistician, they concluded that "probability theory and statistics can be used as the basis for psychological models that integrate and account

Communication is a core challenge for individuals on the autism spectrum, and many autistic individuals experience challenges with language. Prospective studies of younger siblings of children with autism show that siblings not only have an increased likelihood of developing autism themselves, but that even siblings without an autism spectrum diagnosis are more likely to have a language delay as toddlers

This meta-analytic review examines the link between narcissism and aggression, and whether the link is stronger under provocation conditions. A total of 437 independent studies were located, which included 123,043 participants. Narcissism was related to both aggression (r = .26, [.24, .28]) and violence (r = .23, [.18, .27]). As expected, the narcissism-aggression link was stronger under provocation

Cognitive stimulation (CS) is a nonpharmacological intervention often involving group activities and social interaction used to treat cognitive declines in people with dementia. This preregistered systematic review and meta-analysis evaluated the effectiveness of CS in producing benefits on cognition (primary outcome) and quality of life, activities of daily living, and psychological symptoms (secondary

This preregistered meta-analysis theoretically and empirically integrates the two research strands on effort gains and effort losses in teams. Theoretically, we built on Shepperd's (1993) framework of productivity loss in groups and Karau and Williams' (1993) Collective Effort model (CEM) and developed the Team member Effort Expenditure model (TEEM), an extended Expectancy × Value framework with the

The primary goal of this study was to examine developmental patterns among the relations between components of executive function (EF; working memory [WM], inhibitory control, shifting), and academic outcomes (reading, mathematics, language) in elementary school-age children. These relations were examined within the context of the development of EF and of academic skills utilizing an extension of the

The present meta-analysis aimed to quantify sex differences in verbal working memory and to examine potential moderators of these differences. We examined 802 effect sizes from 478 samples in 284 studies in a multilevel meta-analysis. Results revealed a small overall female advantage (g = .028, 95% CI [.006, .050]). In the overall sample, results showed that sex differences differed across tasks. Specifically

[Correction Notice: An Erratum for this article was reported in Vol 147(7) of Psychological Bulletin (see record 2022-08521-004). In the article, there was an error in the calculation of the effect sizes from one study. The three effect sizes for Wolff et al. (2016) listed in Table B1 of the online supplemental materials should have been "r = .09, r = -.02, r = -.05," rather than "r = -.18, r = .53

Over the last century hundreds of studies have demonstrated that testing is an effective intervention to enhance long-term retention of studied knowledge and facilitate mastery of new information, compared with restudying and many other learning strategies (e.g., concept mapping), a phenomenon termed the testing effect. How robust is this effect in applied settings beyond the laboratory? The current

Over the last century hundreds of studies have demonstrated that testing is an effective intervention to enhance long-term retention of studied knowledge and facilitate mastery of new information, compared with restudying and many other learning strategies (e.g., concept mapping), a phenomenon termed the testing effect. How robust is this effect in applied settings beyond the laboratory? The current

Psychological Bulletin has long enjoyed a reputation as a source for what research has revealed about psychological phenomena; it maintains a prestigious position of leadership in psychological science and for science at large; it publishes evidence syntheses that are the most comprehensive and rigorous reviews available; it informs theorists and practitioners. I am duly honored to be selected as its

Questionable research practices (QRPs) can occur whenever one result is favored over another, and tests of mediation are no exception. Given mediation's ubiquity and importance to both theory and practice, QRPs in tests of mediation pose a serious threat to the advancement of psychology. We investigate this issue through the introduction of a straightforward means of detecting the presence and magnitude

Questionable research practices (QRPs) can occur whenever one result is favored over another, and tests of mediation are no exception. Given mediation's ubiquity and importance to both theory and practice, QRPs in tests of mediation pose a serious threat to the advancement of psychology. We investigate this issue through the introduction of a straightforward means of detecting the presence and magnitude

Computational models, in conjunction with (neuro)cognitive tests, are increasingly used to understand the cognitive characteristics of participants with attention-deficit/hyperactivity disorder (ADHD). We reviewed 50 studies from a broad range of cognitive tests for ADHD to synthesize findings and to summarize the new insights provided by three commonly applied computational models (i.e., diffusion

Computational models, in conjunction with (neuro)cognitive tests, are increasingly used to understand the cognitive characteristics of participants with attention-deficit/hyperactivity disorder (ADHD). We reviewed 50 studies from a broad range of cognitive tests for ADHD to synthesize findings and to summarize the new insights provided by three commonly applied computational models (i.e., diffusion

Social support is one of the most robust predictors of posttraumatic stress disorder (PTSD). Yet, little is known about factors that moderate the relationship between social support and PTSD symptom severity. This meta-analysis estimated the overall effect size of the relationship between self-reported social support and PTSD severity and tested meaningful demographic, social support, and trauma characteristics

Social support is one of the most robust predictors of posttraumatic stress disorder (PTSD). Yet, little is known about factors that moderate the relationship between social support and PTSD symptom severity. This meta-analysis estimated the overall effect size of the relationship between self-reported social support and PTSD severity and tested meaningful demographic, social support, and trauma characteristics

The daily challenges resulting from all types of school violence-such as physical aggression, bullying, peer victimization, and general threats-have the potential to affect, longitudinally, students' mental health, school performance, and involvement in criminal or delinquent acts. Across primary and secondary studies, however, variation in how and how much school violence relates to these outcomes

The daily challenges resulting from all types of school violence-such as physical aggression, bullying, peer victimization, and general threats-have the potential to affect, longitudinally, students' mental health, school performance, and involvement in criminal or delinquent acts. Across primary and secondary studies, however, variation in how and how much school violence relates to these outcomes