Research Feed

This study of leaders across 200 organizations found that Extraversion and Agreeableness are the strongest predictors of transformational leadership behavior. While Openness to Experience showed an initial positive correlation, its impact vanished when controlling for other traits, and Neuroticism and Conscientiousness remained unrelated. Interestingly, broad personality domains predicted leadership better than specific facets, and transformational behaviors significantly improved leader effectiveness even after accounting for transactional styles.

Drawing from the longitudinal Intergenerational Studies, this research proves that personality and cognitive ability independently drive career success. Conscientiousness consistently predicted both job satisfaction and higher income, while Neuroticism hindered extrinsic achievements. Furthermore, general mental ability was a primary driver of status and earnings. While adulthood traits are more predictive, childhood personality still contributes unique variance to lifelong professional outcomes.

This meta-analysis of 45 studies identifies hostility as an independent risk factor for coronary heart disease (CHD) and all-cause mortality. Using structured interviews to measure hostile potential yielded a correlation of r=.18 with CHD. Notably, the Cook-Medley Hostility Scale and similar cognitive measures were significant predictors of mortality (r=.16), even after controlling for traditional medical risk factors. While recent high-risk studies have introduced more null findings, the overall data suggests that a hostile personality profile significantly impacts long-term cardiovascular health and longevity.