Nezlek, J. B., & Gable, S. L. (2001). Depression as a moderator of relationships between positive daily events and day-to-day psychological adjustment. Personality and Social Psychology Bulletin, 27, 1692-1704.
For 21 days, 123 participants provided measures of their daily depressogenic adjustment including Beck's cognitive triad, causal uncertainty, control over the environment, self-esteem, and anxiety, and they described the positive and negative events that occurred. Daily adjustment negatively covaried with the number of negative events occurring each day, and except as measured by anxiety, positively covaried with positive events. The covariance between negative events and adjustment was stronger than the covariance between positive events and adjustment. Participants also provided measures of depressive symptoms. For the self-esteem and cognitive triad measures, adjustment covaried more strongly with negative and positive events for the depressed than they did for the nondepressed.