Meta-Analysis of 1,300 Studies Links Intelligence to Extraversion, Compassion and Industriousness
Updated
Updated · Forbes · Jul 21
Meta-Analysis of 1,300 Studies Links Intelligence to Extraversion, Compassion and Industriousness
1 articles · Updated · Forbes · Jul 21
Summary
More than 2 million participants across 1,300 studies showed intelligence tracked strongly with energetic activity, challenging the stereotype that the sharpest minds are quiet, withdrawn and bookish.
Stanek and Ones found the strongest positive links at the facet level: extraversion’s activity, agreeableness’ compassion and conscientiousness’ industriousness all aligned with higher general ability, knowledge or processing speed.
The same analysis split broad traits in two, with politeness and cautiousness correlating negatively with cognitive outcomes even when their neighboring facets—compassion and hard work—pointed the other way.
Neuroticism was only modestly negative overall, but anxiety, depressive tendencies, suspicion and temper showed larger adverse links, consistent with theories that worry consumes working memory needed for reasoning.
The synthesis recasts intelligence as a personality pattern—energetic, genuinely caring, disciplined and emotionally steady—rather than a single quiet-genius type.