Severity of self-reported depression in patients with a schizoaffective disorder

To investigate the severity of self-reported depression in patients diagnosed with a schizoaffective disorder (SZA), the Beck Depression Inventory-II (BDI-II; Beck, Steer, & Brown, 1996) was administered to 75 patients with a SZA. For comparative purposes, the BDI-II was also administered to 75 patients with a major depressive disorder without psychotic features (MDD) who were matched to the SZA sample with respect to sex, being Caucasian, and age. The Cronbach coefficient αs of the BDI-II total scores for the patients with a SZA or a MDD were, respectively, .94 and .92. The mean BDI-II total score (M = 23.71, SD = 15.44) of the patients with a SZA was minimally lower than the mean BDI-II score (M = 28.73, SD = 12.46) of the patients with a MDD. The BDI-II was discussed as being useful for assessing self-reported depression in patients diagnosed with a SZA.