Negative cognitive style as a predictor of negative life events in depression-prone individuals: a test of the stress generation hypothesis.

BACKGROUND Stress generation effects in depressed individuals have been well-documented. However, less is known about what personal attributes of depression-prone individuals may contribute to the stress generation effect. This study investigated the role of negative cognitive style in predicting the occurrence of negative life events. METHODS Undergraduates identified as either high (n=76) or low (n=81) in negative cognitive style were assessed for lifetime history of depression followed by periodic assessment over the course of six months for the occurrence of negative life events and depressive episodes. RESULTS Individuals with negative cognitive styles generated more negative life events (dependent events and interpersonal events, but not more independent or achievement-related events) than individuals with more positive cognitive styles. These results appear to be unique to women. LIMITATIONS Utilizing participants specifically chosen to be high or low in negative cognitive style may limit generalizability to other individuals. CONCLUSIONS Results suggest that an underlying negative cognitive style may account for the stress generation effect often found in depressed individuals, particularly for women. Adequately addressing cognitive patterns in treatment or prevention programs may not only effectively reduce depression, but may also reduce the likelihood of experiencing negative life events that often serve as precipitants for depression.