Psychopathic Personality Inventory-Revised, Levenson’s Self-Report Measure for Psychopathy, Youth Psychopathic Traits Inventory

Research on the Psychopathic Personality Inventory-Revised (PPI-R; Lilienfeld & Widows, 2005) initially revealed two factors: Fearless-Dominance, and Self-Centered Impulsivity. This study examined the validity of the PPI-R factors in a community sample (N=675). First, confirmatory factor analyses did not support the two-factor structure. Second, the PPI-R factors showed good convergent and discriminant validity with two other self-report measures of psychopathy, i.e. PPI-R factors exhibited good external validity in relation to various theoretically relevant correlates. Our results indicate that the PPI-R factors have good convergent, discriminant, and external validity, but our confirmatory factor analysis raises concerns about the robustness of the two-factor structure.