Research Feed

This systematic review finds that employment is generally associated with better health outcomes, especially in reducing depression and improving overall mental well-being. However, evidence on its impact on specific physical health conditions and mortality remains limited. The authors highlight the need for further research to better understand how employment influences these areas and to address existing gaps in the literature.

This meta-analysis demonstrates that maternal personality and psychopathology are deeply interconnected determinants of parenting. Mothers with high Agreeableness, Extraversion, and Conscientiousness, alongside low Neuroticism and psychopathology, consistently exhibited more adaptive warmth and control. Path analyses suggest these traits do not act in isolation; rather, shared variance among these psychological characteristics explains their collective impact on parenting behavior, highlighting the need for more integrated family interventions.

Norm scores allow for the comparison of an individual's results against a population through the lens of a normal distribution. This statistical framework assumes most people score near the mean, with fewer individuals at the extremes. By using the mean (M) and standard deviation (SD), individual results are converted into various standardized scales—such as IQ (M=100,SD=15), T-scores (M=50,SD=10), or z-scores (M=0,SD=1). While these scales measure distance from the average, percentile ranks indicate the percentage of the population that scored the same or lower, providing a clear view of relative standing.

The 120-item version of the IPIP-NEO maintains the strong reliability and validity of the original 300-item inventory while significantly reducing participant burden. Tested across multiple massive datasets totaling over 900,000 individuals, this shorter form demonstrated psychometric properties that compare favorably to the long-form NEO PI-R constructs. This refinement provides researchers with a more efficient tool for measuring the Big Five facets without sacrificing the depth of the assessment.

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.

This study uses the Big Five Aspect Scales to distinguish between 'Intellect' and 'Openness' as midlevel traits within the broader Openness/Intellect domain. Researchers found that Intellect correlates strongly with general, verbal, and nonverbal intelligence. In contrast, Openness is primarily linked only to verbal intelligence. These distinctions clarify how cognitive ability integrates with personality, suggesting different underlying mechanisms for how we process abstract information versus sensory and aesthetic experiences.

This study provides a rare quantitative look at the psychological profile of stand-up comedians compared to college students. The data revealed that comedians scored significantly higher in verbal intelligence and humor production ability, and they utilized all four styles of humor more frequently than the student group. Within the comedian sample, specific personality traits influenced how they used humor: Openness, Agreeableness, and Extraversion were linked to 'affiliative humor' (humor used to bond with others). Notably, professional success in the comedy industry was predicted by a high use of affiliative humor and a low use of self-defeating humor, suggesting that while the 'sad clown' trope exists, the most successful comedians often employ more socially connective and less self-disparaging comedic styles.

This large-scale longitudinal study demonstrates that personality is not fixed but evolves across the entire lifespan, with the most significant shifts occurring during young adulthood and old age. While rank-order stability typically peaks between ages 40 and 60 (meaning individuals stay most consistent relative to their peers during midlife) this stability declines in later years. Crucially, the research shows that personality changes are driven by both selection effects (personality predicting life events) and socialization effects (personality changing in response to events). This confirms that our traits are shaped by social demands and major life experiences rather than just intrinsic biological maturation.

Research across multiple studies identifies a genre-free, five-factor model of musical preferences known as MUSIC: Mellow (relaxing), Unpretentious (sincere/rootsy), Sophisticated (complex/classical), Intense (forceful), and Contemporary (rhythmic). This latent structure suggests that our musical tastes are driven more by emotional and affective responses than by traditional genre labels. These preferences are further shaped by a combination of social context and specific auditory characteristics.

This research demonstrates that the stability and validity of personality facets are highly generalizable across different ages and cultures. Crucially, the study finds that retest reliability (how consistent scores remain over time) is a much better predictor of actual validity than internal consistency (how well items within a test correlate). While researchers often use internal consistency as a shortcut, these findings suggest it cannot substitute for retest reliability when determining if a scale accurately measures personality.

This research reviews how the Big Five personality traits influence individual political attitudes and behaviors. By analyzing stable psychological characteristics, scholars can better predict how different people interact with their political environments. The authors replicated previous studies to ensure that earlier findings were not simply the result of sampling errors or specific historical contexts. While the link between personality and politics is robust, the field still faces challenges in refining theoretical models, improving measurement tools, and resolving inconsistencies between various research findings.

This study explores how human nature and individual differences shape our responses to stress. Meta-analyses reveal that traits like Extraversion, Conscientiousness, and Openness drive 'engagement coping,' where individuals actively face challenges. Conversely, Neuroticism is linked to 'disengagement coping,' such as avoidance. These relationships are further influenced by factors like age and stressor severity, highlighting how personality and coping mechanisms interact to determine overall mental and physical health.

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.

This chapter is divided into two distinct sections. The first provides a high-level overview of the Five-Factor Model (FFM) and its foundational research, designed for general readers seeking a clear introduction to the framework. The second half shifts into a technical exploration of 'Challenges to the FFM,' addressing specific controversies and academic debates intended for professional personality researchers and specialists in the field.

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.