Effectiveness of NEO-PI-R research validity scales for discriminating analog malingering and genuine psychopathology

We investigated the research validity scales for the NEO Personality Inventory-Revised (NEO-PI-R) proposed by Schinka, Kinder, and Kremer (1997): Positive Presentation Management (PPM) and Negative Presentation Management (NPM). Additionally, an experimental analog to the Minnesota Multiphasic Personality Inventory-2's (MMPI-2; Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989) F-K index was calculated by subtracting the raw score on PPM from the raw score on NPM (NPM-PPM). In 2 studies, all indexes showed significant between-group differences when samples of analog malingerers (n = 97) were contrasted with psychiatric outpatients (n = 272). The sensitivity and specificity of these validity indexes indicated that although none performed well in extremely low base rate environments, the NPM and NPM-PPM indexes showed promise when the base rate of faking bad rose to higher levels.