![]() ![]() Analyses indicated that each of the instruments effectively predicted group membership at a rate better than chance and that no single instrument performed better or worse in this task. The diagnostic validity statistics were used to evaluate which instrument has the most clinical and diagnostic utility in the differentiation of psychopathology. ![]() Further analyses provided information on two diagnostic validity statistics which included: positive predictive power (PPP) and incremental validity of positive test diagnoses (IPPP). Analyses included utilizing discriminant function analysis to evaluate the diagnostic accuracy of each personality inventory. Diagnostic utility of the instruments was compared in regards to DSM-IV-TR Axis II diagnoses. ![]() Participants were grouped by Cluster B Personality Disorders (93), Cluster C Personality Disorders (38), and participants without an Axis II diagnosis (240). Discriminant functions of the MMPI-2, MMPI-RC (Restructured Clinical), two alternative MMPI Personality Disorder Scales, and the MCMI-III were compared in a sample of 371 hospitalized psychiatric patients with Axis II discharge diagnoses. The Millon Clinical Multiaxial Inventory and the Minnesota Multiphasic Personality Inventory are two of the most common personality inventories used by clinicians for diagnostic purposes. ![]()
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