A Comparison of the MCMI–III Personality Disorder and Modifier Indices With the MMPI–2 Clinical and ValidSPCEHROSEONNBAELRITGY, DAONRDiR V, AMLOIRDGITAYtN S, CBAULREKSEy Scales

In this study, we examined the relationship of the MCMI–III (Millon, Davis, & Millon, 1997; Millon, Millon, & Davis, 1994) modifier indices and personality disorder scales to the validity and basic clinical scales of the MMPI–2 (Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989). The MCMI–III modifier indices highly correlated with all of the MMPI–2 validity scales except for the F(p) scale. Similarly, the MCMI–III personality disorder scales strongly covaried with the MMPI–2 validity and clinical scales except for the F(p) and 5 (Mf) scales. A factor analysis with Promax rotation revealed substantial relationships between the MMPI–2 and MCMI–III. However, the MMPI–2 F(p) scale did not tend to correlate with MMPI–2 or MCMI–III scales, indicating that F(p) scale variance was largely independent of other scales. The results suggest that clinicians should consider the interrelationship between personality characteristics and dissimulation.