Research Feed

AI may be pretty good at generating effective personality test items. Researchers had GPT-4 write new personality questionnaires from two source texts (DSM-5 disorder descriptions and an astrology book) then gave these alongside the established Big Five Inventory (BFI) to 600 adults. All three questionnaires were tested for how well their scores predicted real-life outcomes (income, well-being, driving habits). Results: despite astrology lacking scientific grounding, its questionnaire predicted outcomes as well as the DSM-based and BFI questionnaires, suggesting item wording matters more than theoretical validity.

Across two studies (cross-sectional and 4-wave longitudinal), "healthy personality"—higher extraversion, agreeableness, conscientiousness, openness, plus lower neuroticism—consistently predicted higher well-being (mental health, life satisfaction, worthwhileness), driven mainly by overall trait elevation rather than resemblance to a specific personality "profile." Healthy personality did predict higher levels, but not stability or change, in well-being or psychological richness (novelty, challenge, perspective shifts) over time.

In 476 Italian adults, higher Agreeableness predicted less comparison-based social media use, but only indirectly: agreeable people engaged in less passive, consumption-based browsing (aimless scrolling), which in turn drove down comparison behavior. The direct link between Agreeableness and comparison-use wasn't significant on its own: passive consumption fully explained it. Positional thinking (evaluating oneself relative to others) didn't significantly moderate this pathway, though the protective effect of Agreeableness trended stronger at medium-to-high levels of positional thinking.

Using confirmatory factor analysis on 408 Chinese private university students in Chengdu, this study validated the five-factor structure of Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism, with acceptable-to-excellent model fit across all dimensions. The study confirms the Big Five's structural validity in this population, supporting institutional recommendations like personality development courses and data-driven student profiling systems to guide holistic growth.

Researchers compared laypeople's beliefs about personality stability to actual data. Study 1 surveyed 887 US adults; Study 2 analyzed 166,971 people across 8 longitudinal datasets tracking Big Five traits from ages 15-90. People believe personality barely changes, but empirically, neuroticism dropped 0.40 SD and extraversion 0.78 SD over the lifespan. Changes as large as those seen in income or health. Conscientiousness alone shifted a cumulative 1.91 SD across adulthood, comparable to major life-outcome variables.

In a 16-year study of 1,110 Mexican-origin adults, job loss disrupted normal personality maturation: conscientiousness and agreeableness declined, and neuroticism's typical age-related decline stalled. Openness dropped both before and after job loss. Rank-order stability was unaffected, but personality profile stability weakened. A partner's job loss also mattered (especially a husband's), which triggered lasting declines in the spouse's agreeableness, conscientiousness, and openness, though conscientiousness sometimes rose compensatorily.

In a study of 425 Iraqi healthcare workers, Extraversion, Conscientiousness, and Openness positively predicted innovative work behavior, while Agreeableness and Neuroticism predicted it negatively. Psychological safety mediated all five relationships, meaning employees' sense that risk-taking was safe determined whether their traits translated into innovation. Notably, Agreeableness boosted psychological safety yet still reduced innovation directly: agreeable employees felt safe but avoided the interpersonal friction innovation often requires, prioritizing harmony over disruptive idea-sharing.

Analyzing 213,259 adolescents across 30 countries via PISA 2022, this study found curiosity, perseverance, emotional control, empathy, assertiveness, and stress resistance each positively predicted science achievement, while cooperation showed a small negative link. Curiosity and perseverance were the strongest predictors. These trait-achievement associations were notably stronger in individualist societies, suggesting cultural context shapes how personality translates into academic performance.

This piece profiles NATO leaders through a personality lens ahead of the Ankara summit, framing Trump's dominance and Dark Triad-style narcissism as a volatility source, Starmer's low charisma and conflict avoidance as weakness, and Carney's pragmatic competence as limited by Canada's modest power. Rutte's diplomatic, mediating temperament and Frostadóttir's passive stance round out a table of clashing personality types Rutte must manage.

When it comes to aging well, diet, exercise, and social interaction may get most of the attention – but researchers are increasingly finding there's more to the story.

In a study of 1,216 Chinese families with preschoolers, parental neuroticism was positively linked to children's emotional and behavioral problems, with parental emotional distress (anxiety, depression, somatization) partially mediating this relationship. Network analysis identified fidgeting/squirming, stealing, unhappiness/tearfulness, and excessive fearfulness as the most central symptoms, pointing to emotional symptoms as key intervention targets.

This study compared 125 older adults (71–101 years) from Sardinia's Blue Zone versus a nearby non-Blue Zone. Openness, conscientiousness, and agreeableness correlated with better psychological well-being; neuroticism correlated with lower Health-Related Quality of Life (HRQoL). Blue Zone residents showed higher openness, better coping and emotional competence, and more leisure engagement than non-Blue Zone peers, suggesting adaptive personality traits and active lifestyles jointly support successful aging in this exceptional-longevity population.

This Stanford Encyclopedia entry surveys analytic philosophy on wisdom: its relationship to virtue, its epistemic domain, and whether living well is required. It doesn't engage empirical personality psychology directly, but the traits it associates with wisdom map onto Big Five facets: open-mindedness and imagination onto Openness, empathy and perspective-taking onto Agreeableness, and reflective self-assessment onto Conscientiousness. Note: these are just my inferential mappings, not claims made in the text itself!

This paper builds a computational atlas encoding 44 personality models (not just OCEAN) into a shared format, enabling cross-model comparison. Key finding: OCEAN/Big Five models rank third in marginal information value; adding clinical or interpersonal models teaches AI systems more than adding another Big Five variant. Data-driven clustering also reveals 15 semantic groupings cutting across traditional disciplinary categories, offering lexical-level evidence that personality science may have overlapping constructs under different names.

Using large, nationally representative samples from 27 countries (N=143,313), this study finds women score higher than men on Neuroticism (d=0.40), Agreeableness (d=0.35), Conscientiousness (d=0.19), and Openness (d=0.11), with no difference on Extraversion. Gender gaps were largest in individualistic countries for most traits, but reversed for Openness. At the facet level, differences concentrated in one facet per domain, notably Anxiety (Neuroticism) and Compassion (Agreeableness).

This PRISMA-guided systematic review synthesized 14 studies (2020–2025) on Big Five/HEXACO traits and vocational outcomes in adolescents. Conscientiousness and Openness were positive correlates of career maturity, decision-making self-efficacy, and vocational identity in several studies, though Conscientiousness's effect often weakened or reversed once RIASEC interests or self-efficacy were added as predictors. Neuroticism (and its HEXACO counterpart, Emotionality) was the most consistent trait, reliably linked to greater decisional difficulty and career self-doubt. Extraversion and Agreeableness showed more selective associations, aligning with enterprising/social interests. RIASEC personality–aspiration congruence varied by culture (moderate in a collectivistic Asian sample versus low in a rural Latin American sample) though this contrast rests on just one study per context.

This study tracked 334 psychiatric inpatients across treatment, examining how Big Five traits changed alongside depression severity. Neuroticism declined significantly while Conscientiousness and Extraversion increased; these trait changes correlated strongly with depression reduction. At the symptom level, higher Neuroticism predicted slower improvement across sadness, guilt, insomnia, and work difficulty, while higher Extraversion and Agreeableness predicted faster gains in specific symptoms like pessimism and self-blame; Conscientiousness showed no item-level effects.

This study used eye-tracking with 30 construction workers (extreme scorers on the Big Five) to examine how personality traits relate to hazard-related visual attention in work-at-height scenarios. High-Agreeableness and High-Conscientiousness workers showed the most hazard-oriented attention—longer fixations on critical zones, higher risk-area fixation probability, and the top two Visual Attention Efficacy scores (0.839 and 0.765). High-Openness and High-Extraversion workers displayed broader, more exploratory scanning but weaker focus on high-risk areas, yielding the lowest efficacy scores (0.163 and 0.137). High-Neuroticism workers showed fragmented, unstable attention patterns, landing at an intermediate efficacy level (0.230), consistent with Attentional Control Theory's account of anxiety impairing top-down attentional control.

Study of 139 male Saudi pre-medical students found openness to experience and extraversion positively predicted performance on both academic writing (r=0.292, r=0.171) and oral presentations (r=0.310, r=0.205), while conscientiousness, agreeableness, and neuroticism showed no significant correlations. Writing and oral proficiency were themselves strongly correlated (r=0.500), suggesting shared cognitive processes. Findings support tailoring communication training around personality profiles (fostering curiosity and social engagement) rather than relying solely on traditional academic predictors like conscientiousness.

Survey of 165 Chinese international high school students found clear links between music taste and Big Five traits: K-pop and electronic music fans scored higher on extraversion; those preferring Chinese pop, Chinese-style, and classical music scored higher on conscientiousness and agreeableness; and rap, rock, and indie/folk fans scored higher on openness but lower on emotional stability. The study (a student-authored project using simplified scales) suggests students gravitate toward music matching their personality and emotional needs, with streaming algorithms, fan culture, and exam stress further reinforcing these patterns.