Abstract
Little is known regarding the construct validity of the Minnesota Multiphasic Personality Inventory-2 Antisocial Practices (ASP) content scale or its differences from the Psychopathic Deviate (Pd) scale. In 3 studies with undergraduates (Ns = 95, 110, and 100), the ASP scale exhibited convergent and discriminant validity with self-report, interview, family history, and observer measures of psychopathy, personality disorders, and personality traits. The ASP and Pd scales had many similar correlates, but the ASP scale correlated more positively with measures of Machiavellianism and more negatively with interviewer-rated honesty than the Pd scale. The ASP scale demonstrated incremental validity over and above the Pd scale for global indexes of psychopathy and antisocial behavior. Neither scale related highly to the absence of stress and interpersonal anxiety characteristic of psychopathy. The ASP and Pd scales, although overlapping in content, appear to measure somewhat different facets of the psychopathy construct.
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