Beck depression inventory adolescent pdf meta-analysis of the BDI’s internal consistency estimates yielded a mean coefficient alpha of 0. 86 for psychiatric patients and 0.
The mean correlations of the BDI samples with clinical ratings and the HRSD were 0. 73, respectively, for psychiatric patients. With nonpsychiatric subjects, the mean correlations of the BDI with clinical ratings and the HRSD were 0. Recent evidence indicates that the BDI discriminates subtypes of depression and differentiates depression from anxiety.