Attributional style and perceived stress in endogenous and reactive depression.

The depressive Attributional Style Questionnaire (Peterson et al., 1982) and the Hassles and Uplifts Questionnaire (Kanner et al., 1981) were administered to melancholic and non-melancholic depressed patients (matched for severity according to a doctors/nurses rating scale), and to non-depressed volunteers. Compared to the other two groups, melancholic patients had higher internality and stability scores for negative attributions, and reported a greater intensity of 'hassles' and a lower frequency of 'uplifts'. The intensity of 'uplifts' was reduced in both depressed groups. On all other cognitive measures, the reactive patients were indistinguishable from non-depressed volunteers. The results suggest that the 'depressive attributional style' may be specific to melancholic patients, and underline the importance of studying well-defined diagnostic subgroups.