National Intelligence, Suicide Rate, and Subjective Well-Being

Abstract

Across 73 countries around the world, national intelligence estimates predicted significant increments in the variance of male and female suicide rates over and above the predictive contributions of the cognitive and hedonic facets of subjective well-being (life satisfaction, happiness, and unhappiness). This new result adds to current evidence for cognitive ability as an ecologic (aggregate-level) correlate of suicide prevalence.