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...

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...

Using NHATS data from 2,672 older adults, this longitudinal cohort study examined Big Five traits and social isolation risk over nine years. Higher extraversion and agreeableness predicted lower odds of baseline isolation, with extraversion remaining protective at three-year follow-up even after ...

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...

This study proposes a Character Model of Scientists (CMS) comprising four dimensions: personality traits, cognitive preferences, values, and habitual behaviors, each containing four elements drawn from a literature review of 24 studies. Big Five connections are explicit: scientists score higher i...

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...

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 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 opinion piece argues that personality traits function as compressed social information, allowing humans to efficiently evaluate cooperative partners. The Big Five personality framework is reframed not merely as a psychometric taxonomy, but as a cognitive shortcut that condenses complex behav...

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 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...

This massive study of over 350,000 people across six continents reveals that preferences for Western music follow universal patterns that transcend cultural boundaries. By analyzing both genre favorability and direct audio reactions, researchers identified five consistent latent factors of musica...

This study suggests that individuals lower in agreeableness are more likely to resist or fail to comply with behavioral health mandates, such as those issued during public health crises. The findings indicate that tailoring health communication strategies to personality differences could improve ...

Based on representative data from Ireland and the United Kingdom, this study found that approximately 31-35% of the population displayed COVID-19 vaccine hesitancy or resistance. While these groups varied in sociodemographic backgrounds, they shared consistent psychological profiles across both n...

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 ...