Jason Rentfrow

Objective Personality traits cluster across countries, regions, cities, and neighborhoods. What drives the formation of these clusters? Ecological theory suggests that physical locations shape humans' patterns of behaviors and psychological characteristics. Based on this theory, we examined whether and how differential land‐cover relates to individual personality. Method We followed a preregistered three‐pronged analysis approach to investigate the associations between personality (N = 2,690,878) and land‐cover across the United States. We used eleven land‐cover categories to classify landscapes and tested their association with personality against broad physical and socioeconomic factors. Results Urban areas were positively associated with openness to experience and negatively associated with conscientiousness. Coastal areas were positively associated with openness to experience and neuroticism …

Objective This research investigates how economic inequality shapes basic human values across three cross‐national, cross‐regional, and longitudinal studies (Ntotal = 219,697). Methods Study 1 examined the relationship between objective economic inequality and values across 77 societies from all five continents (n = 170,525). Study 2 examined the relationship between objective economic inequality and values across 51 regions in the United States (n = 48,559). Study 3 used a two‐year longitudinal design to examine the relationship between perceived economic inequality and values (n = 613). Results Results from multilevel modeling and longitudinal analysis suggested that people who lived in areas with higher economic inequality and who perceived higher economic inequality were more likely to endorse achievement and power values. Moreover, people who perceived higher economic inequality …

The early stages of the COVID-19 pandemic revealed stark regional variation in the spread of the virus. While previous research has highlighted the impact of regional differences in sociodemographic and economic factors, we argue that regional differences in social and compliance behaviors—the very behaviors through which the virus is transmitted—are critical drivers of the spread of COVID-19, particularly in the early stages of the pandemic. Combining self-reported personality data that capture individual differences in these behaviors (3.5 million people) with COVID-19 prevalence and mortality rates as well as behavioral mobility observations (29 million people) in the United States and Germany, we show that regional personality differences can help explain the early transmission of COVID-19; this is true even after controlling for a wide array of important sociodemographic, economic, and pandemic-related …

The “Reading the Mind in the Eyes” Test (Eyes Test) is a widely used assessment of “theory of mind.” The NIMH Research Domain Criteria recommends it as one of two tests for “understanding mental states.” Previous studies have demonstrated an on-average female advantage on the Eyes Test. However, it is unknown whether this female advantage exists across the lifespan and across a large number of countries. Thus, we tested sex and age differences using the English version of the Eyes Test in adolescents and adults across 57 countries. We also tested for associations with sociodemographic and cognitive/personality factors. We leveraged one discovery dataset (N = 305,726) and three validation datasets (Ns = 642; 5,284; and 1,087). The results show that: i) there is a replicable on-average female advantage in performance on the Eyes Test; ii) performance increases through adolescence and shallowly …

People in economically advantaged nations tend to evaluate their life as more positive overall and report greater well-being than people in less advantaged nations. But how does positivity manifest in the daily life experiences of individuals around the world? The present study asked 15,244 college students from 62 nations, in 42 languages, to describe a situation they experienced the previous day using the Riverside Situational Q-sort (RSQ). Using expert ratings, the overall positivity of each situation was calculated for both nations and individuals. The positivity of the average situation in each nation was strongly related to the economic development of the nation as measured by the Human Development Index (HDI). For individuals’ daily experiences, the economic status of their nation also predicted the positivity of their experience, even more than their family socioeconomic status. Further analyses revealed the …

Corruption is often seen as one of the root causes of pressing national and global challenges. The persisting stark national differences in corruption levels and their potential causes have thus attracted growing interest from international business scholars. The objective of this study was to re-examine key factors that predict levels of national corruption. Drawing on comprehensive personality data from over 5 million respondents across 87 nations, and numerous dimensions of national culture, the study examines the relative importance of national personality versus national culture and wealth as predictors of national corruption. Regression analysis found that collectivism (particularly societal practices pertaining to collectivism) and wealth were robust predictors of corruption. In contrast, there was no consistent support for the effects of the Big Five personality traits aggregated to the national level, above and beyond …

Person-culture fit perspectives posit that individuals have higher self-esteem when their values match the values of the sociocultural environment in which they live. The current study tested this hypothesis by examining the associations between value congruence and self-esteem in a large-scale sample in the United States (N = 48,563). Multilevel response surface analyses revealed no evidence of value congruence effects on self-esteem, such that the agreement between individual- and state-level values did not positively predict self-esteem for any of the 10 basic values. Instead, we found positive (stimulation, security) and negative (conformity) linear associations between individual-level values and self-esteem. We also found positive curvilinear relationships between individual-level achievement and tradition values and self-esteem, and negative curvilinear relationships between individual-level self …

Knowledge spillovers across economic agents are central to the process of technological innovation. Yet, the mechanisms by which spillovers travel and manifest as innovation are poorly understood. To fill that gap, we study how knowledge spillovers emanating from other cities (knowledge pools) diffuse and get absorbed. We refine the notion of connectedness by comparing three mechanisms through which knowledge spillovers occur between cities (geographically, technologically, and socially via social media links). We also examine how local psychological openness facilitates this diffusion and absorption process. Using 360 U.S. cities as our empirical context, we find geographically mediated and socially mediated (but not technologically mediated) knowledge spillovers to show positive relationships with the rate of patenting. Moreover, results confirm a positive moderation effect of psychological openness on …

There are notable parallels between the processes leading to PE-fit and known processes of selection and acculturation among US immigrants. Thus, a natural question is: do immigrants benefit from fitting their new environments? PE-fit appears to have uniformly positive effects in the education, career, and personality literatures, but it’s unclear whether this would be the case for immigrants. The current study seeks to evaluate the PE-fit of immigrants to the United States to their new host communities to determine (1) whether immigrants fit as well, better, or worse than US natives,(2) what characteristics of immigrants are associated with better PE-fit,(3) what characteristics of neighborhoods are associated with better immigrant PE-fit, and (4) whether PE-fit matters for the health and well-being of immigrants. We propose to answer these questions using a large (N> 30,000) sample of US immigrants collected via an online personality survey website. Much of the data have been collected but not examined by the authors of this study; moreover, data collection is ongoing. The strengths of the proposed study include expected sampling from a large and diverse set of US immigrants, use of a personality measure that can be scored as both broad and narrow traits and was derived from a large international sample, and a flexible analytic plan that supports investigation of the key research questions posed.

Are there universal patterns in musical preferences? To address this question, we built on theory and research in personality, cultural, and music psychology to map the terrain of preferences for Western music using data from 356,649 people across six continents. In Study 1 (N= 284,935), participants in 53 countries completed a genre favorability measure, and in Study 2 (N= 71,714), participants in 36 countries completed an audio-based measure of preferential reactions to music. Both studies included self-report measures of the Big Five personality traits and demographics. Results converged to show that individual differences in preferences for Western music can be organized in terms of five latent factors that are invariant (ie, universal) across countries and that generalize across assessment methods. Furthermore, the patterns of correlations between personality traits and musical preferences were largely …

Breakthrough innovations are expected to have a bigger impact on local economies than incremental innovations do. Yet past research has largely neglected the regional drivers of breakthrough innovations. Building on theories that highlight the role of personality psychology and human agency in shaping regional innovation cultures, we focus on psychological openness as a potential explanation for why some regions produce more breakthrough innovations than others do. We use a large data set of psychological personality profiles (∼1.26M individuals) to estimate the openness of people in metropolitan statistical areas (MSAs) in the US. Our results reveal that psychological openness is strongly associated with the emergence of breakthrough innovations but not with the emergence of incremental innovations. The findings remained robust after controlling for an extensive set of predictors of regional innovation …

Uchiyama et al. present a dual inheritance framework for conceptualizing how behavioural genetics and cultural evolution interact and affect heritability. We posit that to achieve a holistic and nuanced representation of the cultural environment and evolution against which genetic effects should be evaluated, it is imperative to consider the multiple geographic cultural layers impacting individuals and genetic heritability.

Psychologists have become increasingly interested in the geographical organization of psychological phenomena. Such studies typically seek to identify geographical variation in psychological characteristics and examine the causes and consequences of that variation. Geo-psychological research offers unique advantages, such as a wide variety of easily obtainable behavioral outcomes. However, studies at the geographically aggregate level also come with unique challenges that require psychologists to work with unfamiliar data formats, sources, measures, and statistical problems. The present article aims to present psychologists with a methodological roadmap that equips them with basic analytical techniques for geographical analysis. Across five sections, we provide a step-by-step tutorial and walk readers through a full geo-psychological research project. We provide guidance for (a) choosing an appropriate …

We study the origins of entrepreneurship (culture) in the United States. For the analysis we make use of a quasi-natural experiment-the gold rush in the second part of the 19th century. We argue that the presence of gold attracted individuals with entrepreneurial personality traits. Due to a genetic founder effect and the formation of an entrepreneurship culture, we expect gold rush counties to have higher entrepreneurship rates. The analysis shows that gold rush counties indeed have higher entrepreneurship rates from 1910, when records began, until the present as well as a higher prevalence of entrepreneurial traits in the populace.

Nations differ in their levels of wealth, health, innovation, environment, and globalization, among numerous other attributes. These differences are driven, in part, by the psychological and behavioral characteristics of those nations. But how should we characterize the psychology of nations? Here, we use data from over 5 million (N= 5,179,204) individuals along with census statistics, subsampling, and machine learning methods to derive a completely new framework—global personality archetypes—for characterizing the psychology of nations. We find striking differences in the composition of national psychology across the 47 nations we study; these differences are strongly associated with a broad range of national outcomes, even after controlling for endogeneity and other confounding factors. Moreover, national compositions provide better explanations for most of these outcomes than do alternative models such as national Big Five averages or Hofstede’s cultural dimensions. In particular, our analyses highlight the impact of anxious, over-controlled, and undirected personalities on indicators of economic (eg, globalization, innovativeness, prosperity), environmental (eg, environmental health), and health (eg, healthiness) outcomes. These results demonstrate the role played by national psychology in economic and social development and suggest the underlying composition of this psychology deserves greater attention in psychological research at the national level.

We draw on genetics research to argue that complex psychological phenomena are most likely determined by a multitude of causes and that any individual cause is likely to have only a small effect. Building on this, we highlight the dangers of a publication culture that continues to demand large effects. First, it rewards inflated effects that are unlikely to be real and encourages practices likely to yield such effects. Second, it overlooks the small effects that are most likely to be real, hindering attempts to identify and understand the actual determinants of complex psychological phenomena. We then explain the theoretical and practical relevance of small effects, which can have substantial consequences, especially when considered at scale and over time. Finally, we suggest ways in which scholars can harness these insights to advance research and practices in psychology (i.e., leveraging the power of big data …

There is growing evidence that psychological characteristics are spatially clustered across geographic regions and that regionally aggregated psychological characteristics are related to important outcomes. However, much of the evidence comes from research that relied on methods that are theoretically ill-suited for working with spatial data. The validity and generalizability of this work are thus unclear. Here we address two main challenges of working with spatial data (i.e., modifiable areal unit problem and spatial dependencies) and evaluate data-analysis techniques designed to tackle those challenges. To illustrate these issues, we investigate the robustness of regional Big Five personality differences and their correlates within the United States (Study 1; N = 3,387,303) and Germany (Study 2; N = 110,029). First, we display regional personality differences using a spatial smoothing approach. Second, we …

Mountains—mythic and majestic—have fueled widespread speculation about their effects on character. Emerging empirical evidence has begun to show that physical topography is indeed associated with personality traits, especially heightened openness. Here, we extend this work to the domain of personal values, linking novel large-scale individual values data (n = 32,666) to objective indicators of altitude and mountainousness derived from satellite radar data. Partial correlations and conditional random forest machine-learning algorithms demonstrate that altitude and mountainousness are related to increased conservation values and decreased hedonism. Effect sizes are generally small (|r| < .031) but comparable to other socio-ecological predictors, such as population density and latitude. The findings align with the dual-pressure model of ecological stress, suggesting that it might be most adaptive in the …

Since Trump was elected U.S. President in 2016, researchers have sought to explain his support, with some focusing on structural factors (e.g., economics) and others focusing on psychological factors (e.g., negative emotions). We integrate these perspectives in a regional analysis of 18+ structural variables capturing economic, demographic, and health factors as well as the aggregated neuroticism scores of 3+ million individuals. Results revealed that regions that voted for Trump in 2016 and 2020 had high levels of neuroticism and economic deprivation. Regions that voted for Trump also had high anti-Black implicit bias and low ethnic diversity, though Trump made gains in ethnically diverse regions in 2020. Trump's voter base differed from the voter base of more traditional Republican candidates and Democrat Bernie Sanders. In sum, structural and psychological factors both explain Trump's unique authoritarian …

Tearful crying is a ubiquitous and likely uniquely human phenomenon. Scholars have argued that emotional tears serve an attachment function: Tears are thought to act as a social glue by evoking social support intentions. Initial experimental studies supported this proposition across several methodologies, but these were conducted almost exclusively on participants from North America and Europe, resulting in limited generalizability. This project examined the tears-social support intentions effect and possible mediating and moderating variables in a fully pre-registered study across 7007 participants (24,886 ratings) and 41 countries spanning all populated continents. Participants were presented with four pictures out of 100 possible targets with or without digitally-added tears. We confirmed the main prediction that seeing a tearful individual elicits the intention to support, d = 0.49 [0.43, 0.55]. Our data suggest that …