MMPI—2 findings in schizophrenia and depression.

Abstract

Minnesota Multiphasic Personality Inventory-2 profile differences between patients with a discharge diagnosis of schizophrenia (n = 42) vs. depression (n = 42) were investigated. Multivariate analyses of variance indicated significant multivariate effects associated with diagnosis for the basic validity and clinical scales and for the content scales. The depression group obtained significantly higher mean scale scores on Scales 2 (Depression), 4 (Psychopathic Deviate), 7 (Psychasthenia), 0 (Social Introversion), Anxiety, Depression (DEP), and Social Discomfort. In an attempt to replicate work by Y S. Ben-Porath, J. N. Butcher, & J. R. Graham (1991), a stepwise multiple regression analysis was performed to predict diagnosis, with similar findings obtained. Scale 2 was identified as the 1 significant clinical scale predictor. Two content scales, DEP and Bizarre Mentation, were identified as contributing significantly to prediction beyond Scale 2. When the order of the analysis was reversed, none of the basic clinical and validity scales contributed beyond prediction afforded by the content scales.