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The personality scales of the Millon Clinical Multiaxial Inventory (MCMI) were constructed and validated to measure the typology developed by Millon (1981). The ability of the MCMI to measure the DSM-III personality disorders has not yet been empirically evaluated. The current study found better convergent validity for the DSM-III personality disorders that are consistent with Millon's typology (i.e., the avoidant and the dependent) than for the disorders that are inconsistent (i.e., the antisocial and the passive-aggressive). However, the results may reflect some advantages Millon's typology might have over the DSM-III. The discriminant validity of all four scales was limited, due in part to the overlap among the MCMI scales and the DSM-III personality disorders. We discuss implications of the results for the revision of the MCMI and the DSM-III.
Widiger et al. (Mon,) studied this question.