Why does perfectionism confer risk for depressive symptoms? A meta-analytic test of the mediating role of stress and social disconnection

The stress generation model posits perfectionistic concerns and perfectionistic strivings generate stress and, in turn, depression. Alternatively, the Perfectionism Social Disconnection Model (PSDM) maintains perfectionistic concerns and perfectionistic strivings confer risk for depression through social disconnection. However, inconsistent findings, underpowered studies, and overreliance on cross-sectional designs have obscured understanding of the mediating role of stress and social disconnection in the perfectionism–depression link. We addressed this by conducting the first meta-analytic test of the stress generation model and PSDM. Our search yielded 18 longitudinal studies (N = 5,568) involving community adults, undergraduates, medical students, and psychiatric patients. Results revealed perfectionistic concerns predicted increased depression through social disconnection and stress, whereas perfectionistic strivings predicted increased depression through social disconnection, but not stress.