The Health Behavior Model of Personality in the Context of a Public Health Crisis
The U.S. Centers for Disease Control and Prevention (CDC) has recommended behavioral measures to slow the spread of COVID-19. Here, we report a pre-registered longitudinal study which investigated personality predictors of compliance with CDC recommendations in diverse U.S. adults across five waves from March through August, 2020 (N=596) and cross-sectionally in August, 2020 (N=405). Agreeableness—characterized by compassion—was a strong predictor of compliance, above and beyond other traits and demographic predictors. The effect of agreeableness was robust across two diverse samples, three sets of sensitivity analyses, and was not moderated by time or demographic variables. These findings highlight the strong theoretical and practical utility of testing long-standing psychological theories using rigorous methods during real-world crises. We discuss implications of these findings for the health behavior model of personality and make recommendations for combining current health-behavior messaging with alternative appeals that are more likely to reach less agreeable individuals.