Individual differences and changes in personality during the COVID-19 pandemic

This article reports the results of an eleven-wave longitudinal study of personality change conducted between December 2019 and December 2022 with 1328 participants in Germany. Based on theories of personality change, we investigated trajectories of big five personality factors (i.e., extraversion, agreeableness, conscientiousness, emotional stability, and openness) across the COVID-19 pandemic. In addition, we examined whether demographic characteristics (i.e., age, sex), self-reported health status (i.e., physical, mental), and socioeconomic status (i.e., education, income, industry) moderated these trajectories. There was evidence for increases in extraversion, conscientiousness, and emotional stability and decreases in openness across time. The magnitude of these effects suggests between d = 0.027 to 0.138 standard deviation changes in these personality characteristics across the 3-year timeframe of this study. Evidence for moderating effects of age, sex, health, and socioeconomic status was mixed, but indicates differential patterns of personality change for certain individuals. Overall, findings suggest that changes in big five personality factors across the COVID-19 were present, albeit on average relatively weak, but still higher than anticipated given the timeframe. Moreover, certain demographic and health variables were associated with differential trajectories of personality over time.