Research Feed

A 2026 South African study (n=118) found work engagement positively linked to all Big Five traits except neuroticism, which correlated negatively. Extraversion and conscientiousness were the strongest predictors. Basic psychological need satisfaction (especially "joyful connection") explained add...

When people feel more satisfied at work, they gradually become more conscientious and emotionally stable, and those personality shifts in turn make them even more satisfied, creating a self-reinforcing cycle. Two large studies confirmed this goes both ways, with effects building and then fading o...

Using cluster analysis with 426 Polish participants, Kotus identified three Big Five personality profiles predicting pet attachment. Cluster 1 (high extraversion, openness, emotional stability) showed lower attachment. Clusters 2 (high neuroticism, low extraversion/openness) and 3 (low openness, ...

This multimodal AI system predicts Big Five personality traits from text, speech, and facial expressions using the myPersonality dataset (86,220 participants). GPT-3 achieved 89.1% accuracy, with Openness (91%) and Extraversion (90%) most reliably classified. Agreeableness proved hardest to detec...

A 2026 multilevel meta-analysis (k=34 studies) found agreeableness, conscientiousness, extraversion, and openness positively associated with healthy eating and fruit/vegetable consumption; neuroticism was negatively associated. Agreeableness and conscientiousness also predicted lower sodium intak...

This study developed an efficient AI system for predicting Big Five personality traits from long-form life narrative interviews (the kind of detailed life stories people tell about key events and relationships). Rather than relying on questionnaires, which can be biased, the model reads how peopl...

Using a cross-sectional sample of 3+ million participants across 68 countries, this study examined how age moderates gender differences in Big Five personality traits. Women scored higher than men on Neuroticism, Extraversion, Agreeableness, and Conscientiousness; men scored higher on Openness. T...

A theoretical analysis argues the human Big Five personality model is inappropriate for describing great ape personality, as structural overlap between human and ape trait dimensions is below 50% for chimpanzees and as low as 25% for other great apes. The author proposes studying simpler, cross-s...

Using a 2022 survey of 1,306 U.S. federal bureaucrats, this study examines how Big Five personality traits shape perceptions of agency politicization. Neuroticism is the standout finding: more neurotic employees are significantly more sensitive to formal politicization, perceiving greater appoint...

Among 121 Gen Z participants in Surabaya, emotional regulation negatively predicted impulsive buying (higher regulation, lower impulsivity), while social presence positively predicted it (more social influence, more impulsive purchases). Together, both variables significantly explained impulsive ...

Using latent profile analysis across 3,600+ men from 103 countries, this study challenges the prototype of the extraverted, confrontational ally. "Well-Adjusted" men (high on all Big Five traits, low neuroticism) rated both committed and relationship-building allyship strategies as best-fitting. ...

Using PLS-SEM with 530 Chinese participants, this study models how Big Five traits shape adoption of AI-powered financial robo-advisors via perceived intelligence and anthropomorphism. Conscientiousness, extraversion, and agreeableness positively influenced both AI perceptions and adoption direct...

This cross-sectional study of 291 Chinese dental students examined how Big Five traits relate to empathy, with resilience as a mediator. Extraversion, agreeableness, conscientiousness, and openness positively predicted empathic concern and perspective-taking, while neuroticism was associated with...

A 2026 French longitudinal study (n=94, 10 weeks) tracked how exercise becomes more "second nature" (requiring less conscious effort and willpower) over time. More conscientious people developed automatic exercise habits faster; higher neuroticism made it harder to feel in control early on. Pract...

Using Big Five personality traits and Latent Profile Analysis, this study segments South Korean robotic café customers into two profiles: "Mindful Consumers" (higher neuroticism, lower openness) and "Future-Forward Consumers" (higher openness, extraversion, agreeableness). The latter reported str...

This CHI 2026 paper tests whether Big Five (OCEAN) traits can be embedded in AI coding agents. Researchers created three profiles (a no-personality Baseline, a Cautious Guardian (thorough, risk-focused), and a Decision Builder (confident, exploratory)) and had 14 developers use all three on refac...

This correlational study of 80 Filipino public school employees examined how Big Five traits relate to workplace relationship quality. Employees scored high on agreeableness, openness, conscientiousness, and extraversion, with moderate neuroticism. All four high-scoring traits positively and sign...

This meta-analysis of over 65,000 participants confirms that Big Five traits significantly shape our nocturnal experiences. Neuroticism is the primary predictor of nightmare frequency and emotional distress, while Openness correlates with high dream recall, vividness, and lucid dreaming. Extraver...

This study highlights that core personality traits are powerful predictors of baseline fitness and the specific exercise intensities individuals enjoy. Notably, participants scoring high in Neuroticism experienced the most significant stress-reduction benefits from aerobic training, suggesting a ...

This large-scale meta-analysis of over 150,000 participants explores how the Big Five traits influence dietary habits. Researchers found that lower Neuroticism and higher levels of Openness, Conscientiousness, Extraversion, and Agreeableness consistently predict a healthier diet. These traits aff...