Research Feed

This comprehensive meta-analysis of over 160,000 participants explores the deep connections between personality and intelligence. The findings identify Openness and Neuroticism as the strongest predictors of cognitive ability, with Openness specifically linked to 'crystallized' intelligence, or acquired knowledge. By looking at specific facets, the researchers found that intellectual engagement and unconventionality correlate positively with intelligence, while traits like sociability and orderliness actually show slight negative correlations.

Applying a Lewinian interactionist framework, this study examined how both government policy and personality traits influenced sheltering-in-place behavior across 54 countries. Researchers found that while strict government policies effectively increased compliance, individual personality traits remained significant predictors of behavior. Specifically, high levels of Openness, Conscientiousness, Agreeableness, and Neuroticism were linked to staying home, while Extraversion was associated with lower compliance. Notably, the influence of Openness and Neuroticism weakened as government restrictions became more stringent, suggesting that while personality drives behavior in flexible environments, strong external policies can partially override these internal tendencies.

This study leverages massive streaming data from Spotify to demonstrate that musical preferences are a powerful window into personality. By analyzing millions of songs and over 200 behavioral metrics, researchers used machine learning to predict Big Five traits with high accuracy. The findings challenge previous theories by proving that our digital listening habits (rather than just self-reported tastes) provide a remarkably precise reflection of our underlying psychological makeup.

This meta-analysis of 90,000 participants identifies Neuroticism, Extraversion, Openness, and Conscientiousness as key predictors of verbal fluency. These traits consistently correlate with word retrieval across all age groups, independent of education. Notably, the protective effects of these personality profiles are strongest in older adults and those with less education, highlighting their significant role in maintaining cognitive resilience against age-related decline.

Research identifies that the clinical impact of nightmares is driven not only by how often they occur but by the dreamer's underlying emotional framework. While nightmare frequency is a baseline factor, Neuroticism (or heightened emotional reactivity) is a significant contributor to the distress these dreams cause. This supports the neurocognitive model of dreaming, suggesting that those with higher emotional sensitivity process nightmare content with greater intensity. Additionally, nightmares that directly mirror real-life events are linked to higher distress levels. These findings suggest that addressing a nightmare disorder requires looking beyond the frequency of the episodes to treat the individual's emotional response and the specific waking-life connections involved.

This chapter offers a comprehensive introduction to the theoretical frameworks and empirical evidence linking personality to parenting. It begins by establishing the core concepts within personality psychology and parenting research, then transitions into a detailed review of how specific traits influence caregiving behaviors. The chapter concludes by identifying critical gaps in the current literature, proposing future research directions, and summarizing the broader implications of these personality-parenting associations.

This large-scale longitudinal study involving over 22,000 adults demonstrates a powerful, bidirectional relationship between personality and sleep quality. Lower Neuroticism and higher Extraversion were the strongest predictors of better sleep, often outweighing demographic factors. Conversely, low Conscientiousness predicted a decline in sleep quality over time. Notably, the relationship is reciprocal: poor sleep quality was associated with 'detrimental' personality trajectories, including steeper declines in Extraversion, Agreeableness, and Conscientiousness. These findings suggest that sleep is not just a health outcome influenced by personality, but a critical factor in maintaining a stable and healthy personality profile as we age.

This meta-analysis examined links between Big Five personality traits and physical activity across over 60 studies. Extraversion, conscientiousness, and openness showed small positive associations with activity, while neuroticism showed a small negative link; agreeableness was not related. Effects varied across study designs and samples. Overall, findings suggest personality has modest but meaningful connections to physical activity, highlighting the need for stronger measures and longitudinal research.

The site includes over 3,000 items and over 250 scales that have been constructed from the items. New items and scales are developed on an irregular basis. The items and scales are in the public domain. This work offers a robust scientific foundation for understanding the stable patterns of human personality and their significant real-world implications across different environments.

A meta-analysis of nearly 6,000 parent-child dyads indicates that a parent’s personality serves as a significant resource for their caregiving style. Higher levels of Extraversion, Agreeableness, Conscientiousness, and Openness correlate with increased warmth and behavioral control. Furthermore, Agreeable parents with low Neuroticism are more likely to support a child’s autonomy. Although these effects are small, they remain consistent across various assessment methods and family structures.

This study investigated how the Big Five traits and problem appraisals influence how men cope with daily stressors. Researchers found that low perceived control shifts coping from direct action toward distraction and acceptance, while stressor severity increases reliance on religion and catharsis. Importantly, traits like Neuroticism and Conscientiousness not only predict specific coping strategies but also moderate how individuals react to the severity and uncontrollability of a stressful event.

A meta-analysis of studies spanning nearly four decades identifies Extraversion, Conscientiousness, and Neuroticism as the primary personality drivers of physical activity. Specifically, individuals who are more outgoing and disciplined tend to exercise more, while those higher in emotional instability are less active. Interestingly, traits like Openness and Agreeableness showed no significant link to activity levels. While more research is needed on specific types of exercise, these core personality-activity relationships appear remarkably consistent across different ages, genders, and cultures.

This cross-national study reveals that narrow personality facets predict cognitive ability nearly twice as effectively as the broad Big Five domains. While broad categories mask specific relationships, granular facets account for 10% of the variance in intelligence. Notably, these associations vary by country, particularly regarding Openness. These findings emphasize the necessity of a facet-level approach to accurately capture the complex link between personality and cognition.

The Big Five personality factors serve as powerful heuristics for predicting outcomes across multiple life domains. At the individual level, traits are linked to health, happiness, and identity. Interpersonally, they shape the quality of family and romantic relationships. Finally, at the institutional level, personality influences occupational success, political ideology, and community involvement. These findings underscore that personality dispositions are not just internal states but active drivers of significant life consequences.

Research indicates that while lucid dreaming is a common phenomenon (reported by 82% of students) it has a surprisingly weak direct link to major personality traits. The study found no significant association with Introversion or Neuroticism, refuting theories that link lucidity to specific levels of well-being. While small correlations exist with Openness to Experience (specifically fantasy and imagination), these are largely mediated by the dreamer's overall ability to recall dreams. Interestingly, a moderate link between nightmare frequency and lucidity suggests that intense or distressing dreams may actually act as a trigger for becoming aware within the dream state.

This twin study reveals that while parental personality and caregiving styles share a modest connection, their association is primarily driven by nongenetic factors. Although parenting dimensions themselves show moderate genetic influence, the overlap with personality traits stems from environmental experiences rather than shared DNA. This suggests that external social contexts and life events play a more decisive role in how personality shapes parenting.

This meta-analysis of 62,000 employees confirms that positive and negative affect are powerful, independent drivers of job attitudes. Negative affect strongly predicts emotional exhaustion, while positive affect enhances job satisfaction and personal accomplishment. Because both affects contribute uniquely, workplace well-being requires more than just reducing stress; it necessitates fostering positive emotional states to improve organizational commitment and reduce turnover intentions.

This longitudinal research reveals a reciprocal relationship between personality and professional life during the transition into adulthood. While personality traits at age 18 significantly predict both objective and subjective work experiences by age 26, the reverse is also true: early career experiences actively shape personality development. Most notably, the study identifies a 'corresponsive' effect, where the same traits that lead an individual to choose a specific career path are further strengthened and reinforced by the demands of that environment.

This study examines how life milestones and personality traits affect relationships between 26-year-olds and their parents. Relationships tend to be more positive when young adults are married, employed, and living independently. However, personality plays a distinct role: higher levels of negative emotionality and lower self-control in young adults correlate with more strained parent-child dynamics, regardless of their life achievements.

This longitudinal study demonstrates a reciprocal relationship between stable personality traits and the quality of romantic relationships in young adulthood. Personality assessed at age 18 significantly predicted relationship quality, conflict, and abuse at age 26, suggesting that individual differences create consistent patterns even across different partners. Simultaneously, relationship experiences influenced personality development over time. These findings indicate that while relationships can impact the individual, a person’s inherent traits often determine whether their romantic unions thrive or fail, underscoring the importance of considering personality as a fundamental driver of relational outcomes.