The numerous executive orders directed at transgender youth in the weeks following the 2025 U.S. presidential inauguration were likely a signal to these youth-and their parents-that the federal government no longer supported them. Using a longitudinal design spanning 3 years prior to the inauguration (2022-2024) and 2 months surrounding the inauguration, we tested whether the mental health and well-being of U.S.-based transgender youth and their parents declined relative to that of cisgender youth and their parents in a sample that, on the whole, did not support the new administration (N = 160 youth, aged 12-17 years; N = 167 parents). Across preregistered analyses, we observed significant declines in the mental health and well-being of parents of transgender youth compared to parents of cisgender youth; we observed fewer differences over time between transgender versus cisgender youth themselves. Our findings identify an immediate potential cost of the current political environment for supportive parents of transgender youth.
Accountability is a commonly recommended intervention to reduce discrimination. However, there have been no field experiments testing whether it reduces discrimination in workplaces. Here we present preregistered analyses of a field experiment conducted at a company (n = 3,266 managers rating 17,149 employees) testing whether an accountability intervention reduces performance-evaluation gaps between White and racial-minority employees. We did not find evidence that the accountability intervention closes evaluation gaps. These null effects are likely not driven by a lack of statistical power or by inattentive managers, nor is the manipulation ineffective in all contexts-a supplemental online experiment shows that similar treatment language does change decision-making, underscoring a disconnect between findings in hypothetical settings versus real organizations. These results highlight the need for additional field experiments and theorizing to better understand when and why accountability interventions, as they may typically be implemented in organizations, improve diversity-related outcomes.
Does overconfidence really confer adaptive benefits to children's learning? Through a tripartite investigation involving a preregistered replication (Study 1; N = 30, children aged 6-8 years), computational simulation (Study 2), and an experimental intervention (Study 3; N = 64, children aged 6-8 years), we first replicated previous findings that highly overconfident (HO) children exhibited less negative performance change across a memory task than their low-overconfidence (LO) counterparts. However, this pattern was driven by participant-selection bias and regression-to-the-mean effects rather than by adaptive benefits of childhood overconfidence. When experimentally manipulating children's overconfidence levels to eliminate these methodological drawbacks, the difference in performance changes between HO and LO children disappeared. These findings challenge an influential hypothesis about the adaptive nature of childhood overconfidence, underscore the risks of median-split designs with difference scores, highlight the necessity of causal experimental approaches in developmental research, and raise concerns about educational practices promoting positive illusions in children.
The cognitive reflection test (CRT) measures reliance on intuitive thinking versus deliberate reasoning and predicts important real-world outcomes. Prior research has suggested that testosterone administration impaired CRT performance, but follow-up studies produced null results. To provide a rigorous test, we conducted a large, preregistered, double-blind, placebo-controlled experiment, unprecedented in size, with 1,000 adult men, as part of an adversarial collaboration. Participants received a single dose of intranasal testosterone or placebo, completed the CRT, and rated their confidence level. We found an insignificant treatment effect on the CRT, with the point estimate in the opposite direction of the original hypothesis (βLOGIT = 0.118, 95% confidence interval (CI) = [-0.099, 0.335]). In a second primary test, we found a significant negative treatment effect on confidence (βLOGIT = -0.329, 95% CI = [-0.558, -0.100]), which is also the opposite of our prediction. Our findings challenge earlier claims about testosterone's cognitive effects and highlight the importance of high-powered replications. Long-term or developmental testosterone effects remain potentially important but difficult to study.
How does the mind grow? Despite centuries of philosophical and psychological inquiry, little is known about how ordinary people intuitively conceptualize mental development. Across six countries (Australia, Japan, Mexico, South Africa, the United Kingdom, and the United States), adult participants reported their intuitions about mental development by indicating when they think various mental capacities first emerge. Across tasks and cultures, intuitions about mental development were consistently organized along two dimensions: an earlier-developing perceptual and experiential dimension (e.g., seeing, fear, hunger, pain) and a later-developing reflective and evaluative dimension (e.g., reasoning, beliefs, self-restraint, pride). Competing models were ruled out, showing that this structure is unique to lay beliefs about mental development. These dimensions also aligned with participants' intuitions about the origins of mental capacities within a nature-nurture framework. Together, the findings reveal a consistent cross-cultural pattern for reasoning about mental development and illuminate the intuitive architecture of mind perception.
In recent years, several scholars have argued that the influence of deliberate practice on expertise has been overstated. Others have contended that these critiques conflate deliberate practice with less effective forms of training. We analyzed a large, longitudinal cohort of Chess.com players (N = 44,213) using objective, time-stamped measures of both practice activity and performance. We tested whether deliberate practice-aligned activities predict greater rating improvement than playing games. Multilevel models revealed that, despite more than 90% of player time being spent on games, deliberate practice was substantially more efficient for learning. Although not all deliberate practice-aligned activities were equally effective, the category as a whole was associated with a 3.61× advantage in learning efficiency relative to gameplay (ps < .001). These findings offer rare real-world evidence in a long-standing theoretical debate about learning efficiency. How individuals train, not just how much, fundamentally shapes the trajectory of skill development.
A subtle yet ubiquitous feature of the human face is eye glint-specular reflections from the surface of the eye that vary with the position of light sources in the environment. This study tested whether eye glint influences face perception, particularly in how observers perceive the gaze direction of a person they are viewing. Adult participants viewed computer-rendered face images that varied in eye direction, head rotation, and illumination. The presence of eye glint had little influence on the accuracy or precision of perceived gaze direction when faces were viewed under simplified conditions. However, biases in perceived gaze direction caused by changes in head orientation or illumination direction were reduced when eye glint was present relative to when it was absent. This suggests that eye glint can help an observer to maintain constancy in gaze perception despite variability in the appearance of the eye region that occurs across viewing conditions.
Investigations into people's ability to use multiple working memory representations to concurrently search for targets have led to mixed findings. Although the discourse has predominantly centered around capacity limits in multitarget search, we here propose that people can switch between sequential and concurrent search. In Experiment 1 (n = 16 adults), manual responses and oculomotor behavior revealed that participants could search sequentially, and concurrently for at least two targets, when instructed. In Experiments 2a (n = 16 adults) and 2b (n = 16 adults), participants were free to choose how they searched. Trial-level modeling showed that participants primarily used sequential and concurrent search as specific modes and flexibly adjusted between either mode depending on template set size, template availability, stimulus properties, and individual preference. Our findings stress the dynamic and adaptive nature of visual search. Moreover, understanding that different search modes can be flexibly picked as "tools from the toolbox" may reconcile inconsistencies in prior findings.
Realizing a sustainable future requires the active participation of today's young generations. How can we foster adolescents' proenvironmental engagement? In a preregistered, cross-national, longitudinal field experiment, we tested a novel approach to promoting adolescent behavior change: motive alignment. We hypothesized that presenting proenvironmental behavior as aligned with adolescents' developmentally salient motives (in this case, autonomy and peer status) would enhance their engagement. In Study 1 (the Netherlands), a motive-alignment (versus control) intervention implemented in secondary schools increased adolescents' proenvironmental food choices on the day of the intervention. Although this effect faded after 4 weeks, participants in the intervention condition continued to donate more to an environmental organization at follow-up. In Study 2 (China), we replicated these findings. Motive alignment thus offers a promising approach to strengthen interventions promoting adolescents' proenvironmental behavior; it presents scalable and affordable opportunities to foster youth behavior change.
Evolutionary theories suggest that retributive sentiments evolved to deter antisocial behavior, yet psychological evidence shows punitive sentiments imperfectly optimize deterrence. Recent theories resolve this paradox, suggesting that retributive sentiments serve to restore mutual benefit between partners by both compensating the victim and imposing an additional deterrent cost on the transgressor. In four experiments, we tested predictions of this hypothesis with adults from a small-scale, politically decentralized society (Mentawai horticulturalists, Indonesia; N = 74) and a large-scale society (the United States; N = 600). Consistent with compensatory concerns, participants demanded that victims be rewarded in the currency of their loss and that more severe punishment be imposed when victims suffered more, holding aggressor benefit constant. Consistent with compensation being entangled with deterrence, participants endorsed additional penalties beyond restitution that were higher for recidivism and intentional offenses. This proximate entanglement of compensation and deterrence helps resolve apparent contradictions about the function of punishment in humans.
People often understand parts of languages that are closely related to their native tongue. But do they understand what the speaker intends to convey? We discovered that linguistic similarity induces an illusion of understanding, leading people to believe they understand more than they actually do. In Study 1, adult native Italian speakers overestimated their understanding of a speaker's intent more when they listened to Spanish (close language) than to Northern Jiangsu Chinese (distant language). In Study 2, adult native Mandarin Chinese speakers overestimated their understanding more when they listened to Northern Jiangsu Chinese (close language) than to Spanish (distant language). When listening to the closer language, listeners were more confident, and this mediated their overestimation of understanding. An illusion of understanding, then, increases not despite language closeness but because of it. This has theoretical implications for the role of calibration in communication and practical implications for miscommunication in international settings.
In 2012, Livingston et al. found that Black women were buffered against gender backlash; whether Black women were dominant or supportive toward an employee did not affect people's perceptions of them as leaders in an organization. Conversely, White women incurred a status penalty for being dominant. Twelve years later, no direct replication has been published, and related research reached different conclusions: that Black women experience the most gender backlash for being dominant (as politicians) or that race does not affect gender backlash (for expressing anger). Given the seemingly contradictory results and limitations of previous research, the relationship between race and gender backlash warrants reexamination. In this registered report, we conducted a high-powered direct replication and extension of Livingston et al. with adult participants online (N = 1,996). We found that both Black and White women (as well as men) suffered a status penalty for displaying dominance, suggesting a failure to replicate Livingston et al.'s findings. We discuss implications for theories of intersectional gender backlash.
Understanding variation in cognitive abilities is critical to understanding both the evolution and development of cognition. In this study, we examined the stability, structure, and predictability of individual differences in cognitive abilities in great apes across a broad range of domains, including social cognition, reasoning about quantities, executive function, and inferential reasoning. We administered six tasks to 48 individuals from four species, spanning 10 sessions over 1.5 years. Task performance was most strongly predicted by stable, individual-specific characteristics rather than transient or group-level variables. Using additional data from the same individuals in other tasks, we found substantial positive correlations between nonsocial tasks. In contrast, tasks measuring social cognition were not correlated either with each other or with nonsocial measures. Future studies should work toward mechanistic models of great apes' cognitive processes to build an understanding of the evolution of cognition based on process-level commonalities across species.
The present work evaluates the rise, impact, and imbalances of big-team psychology via an analysis of 3,023,895 articles published in the 21st century. Results indicate that big teams-ranging from 10 to more than 100 authors-are relatively unusual (n = 49,695) but increasing in popularity. More notably, such collaborations generate unusually high impact in terms of yearly mentions in scholarly articles (n = 39,788,158), the news (n = 1,018,639), social media (n = 5,971,965), and policy documents (n = 69,959). An examination of country-level sociocultural indicators revealed that first authors, in general, tend to be in regions that are relatively WEIRD: Western, Educated, Industrialized, Rich, and Democratic. However, this imbalance is slightly more pronounced among larger teams. In summary, results suggest that big-team science is an emerging trend in psychology-one that is unevenly deployed across world regions to generate high-impact scientific insights.
Income inequality is frequently cited as a forceful determinant of mental health and as a possible contributor to the rising trend in adolescent depressive symptoms. However, research findings often rely on low-powered cross-sectional designs. We conducted a preregistered study of the within-municipality effect of income inequality on adolescent depressive symptoms in Norway, covering ≈550,000 respondents nested within 863 municipality years and 340 municipalities. Using multilevel modeling and equivalence testing, the overall within-municipality effect of income inequality was neither statistically significant nor practically meaningful and did not significantly interact with family financial situation. A significant gender interaction showed that rising inequality predicted slightly higher depressive symptoms among females and slightly lower among males; however, the main gender effects were also probably too small to be meaningful. We conclude that changes in income inequality likely do not meaningfully predict nor help explain changes in adolescent depressive symptoms in Norway from 2010 to 2019.
We studied the consequences of economic inequality for depression among adults using individual-level longitudinal administrative data from Denmark (n = 60,654,690 person time points). The data allow us to (a) measure depression without nonresponse (by proxy of redemption of prescriptions for antidepressants), (b) measure income inequality at a low level of aggregation to capture individuals' everyday experiences, (c) conduct within-individual analyses from stable individual characteristics to address confounding, and (d) test whether inequality has similar consequences for people located differently in the local income distribution. In contrast to previous work, we found a modest negative average effect of economic inequality (a 1-SD increase in inequality is associated with a 1%-2% relative decrease in the probability of depression). However, this average masks substantial heterogeneity: The negative effect was confined to the locally relatively well-off, whereas those with the lowest relative income tended to become more depressed as inequality rose.
Social situations are key determinants of cognition and behavior, and although several frameworks for representing situations have been proposed, these remain partial, nonintegrated, and not systematically mapped onto the rich space of situations encountered in everyday life. We address this problem by analyzing more than 20,000 detailed textual descriptions of dyadic social interactions obtained from participant-generated stories, published fiction, blogs, and autobiographical narratives. Our main methodological contribution is to use generative artificial intelligence to code these textual descriptions along a very large set of features and derive a detailed taxonomy of situational classes or categories of social interactions. We subsequently relate these situational classes to high-level situational variables like conflict, power, and duty, which have been identified by prior theory. In this way, our article provides a comprehensive, data-driven, and integrative framework for quantifying situational structure, advancing the study of social cognition and behavior.
Sexism is a pervasive and persistent problem. In their 2022 article "The 'Equal-Opportunity Jerk' Defense: Rudeness Can Obfuscate Gender Bias" (Psychological Science, Vol. 33, pp. 397-411), Belmi et al. argued that sexism can be obfuscated and go unpunished if perpetrators also act rudely toward men: the "equal-opportunity jerk defense." We introduce a simple Bayesian model that accounts for Belmi et al.'s findings and corroborated their predictions and implications in five preregistered experiments (N = 6,968 U.S. adults recruited via Prolific). We replicated that being rude toward men decreased perceived sexism but importantly found that it came at the cost of increased punishment (Study 1). Moreover, rudeness primarily decreased actors' perceived sexism, whereas their actions were still perceived as sexist (Study 2). Sexism ratings were sensitive to prior beliefs about the prevalence of sexism and to the diagnosticity of observed sexist behavior (Supplementary Studies S1-S2), in line with a broader Bayesian perspective. Bias in sexism ratings thus need not implicate fallacious cognitive processes or an "illusion of gender blindness."
Salient stimuli have the potential to distract us from our immediate goals. Much research has therefore aimed to understand how we learn to use attention to resist distraction by salient stimuli. We propose a new hypothesis whereby an initial instance of distraction can improve future suppression of salient stimuli. Across three experiments (N = 120 college students, aged 18-35 years), we provide evidence for this hypothesis using a new eye-tracking approach. The results demonstrated that an initial instance of distraction occurred before salient distractors were suppressed. Notably, if this initial instance of distraction was eliminated or weakened via experimental manipulations, learned suppression of the distracting stimuli was greatly reduced. Together, these findings suggest that attentional capture can serve as a learning signal that improves future attentional control. They also indicate that learned suppression emerges rapidly, which has strong implications for models of attention and cognitive control.
How essential is a sense of significance, the feeling that our efforts matter beyond the trivial or momentary, for motivation? Four studies (N = 604 4-9-year-old children and 582 adults) show that no amount of significance is too small to matter, even for small actions from early in life. Children and adults strongly preferred artistic activities with minimal significance (i.e., where their work would be saved) over activities with no lasting existence. This preference held for both repetitive and one-time tasks and was specific to creating artwork, not just observing it. Anticipating even minimal significance motivated participants to engage in productive rather than effortless activities. When significance is absent, focusing on enjoying the process partially, but not fully, compensates for motivation. These findings illuminate the scope and sensitivity of significance, revealing it to be not a luxury concern but an essential, early-emerging motivational force in an increasingly fast-paced, transient world.
