Comparison of MMPI-2 and MMPI Clinical Scales and High-Point Scores Among Methadone Maintenance Clients

Abstract

Methadone client volunteers completed the Minnesota Multiphasic Personality Inventory (MMPI; Hathaway & McKinley, 1967) and MMPI-2 (Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989) on consecutive days. MMPI-2 T-scores were lower by a mean of 4.7 on the clinical scales; when 5 points were added to MMPI-2 T-scores the mean difference was 2.3. Rank order of subjects on scale T-scores was not significantly different between the two instruments. High-point similarity for clinically elevated profile pairs ranged from 61% to 92%, depending upon definition of similarity.

Barron's Ego Strength Scale and Welsh's Anxiety and Repression Scales: A Comparison of the MMPI and MMPI-2

“…Generally, researchers have found considerable agreement between the clinical scales on the MMPI and MMPI-2 in normative samples (e.g., Ben-Porath & Butcher, 1989a, 1989bButcher et al, 1989) and clinical populations (e.g., Husband & Iguchi, 1995). However, some of the supplementary scales may have been Downloaded by [University of New Mexico] at 07:48 14 October 2014 more substantially affected by the revision because these scales lost a number of items from the MMPI.…”