Objective: The purpose of this study is to examine, in a mixed clinical sample, the sensitivity of the Personality Assessment Inventory (PAI; Morey, 1996) validity scales in discriminating between patients who failed two or more performance validity tests (PVT) from patients who passed all PVTs. Method: The sample included 351 consecutive clinical referrals for neuropsychological evaluation (mean Age = 46.4, SD = 15.1; mean Education = 13.5, SD = 2.6). All participants completed a comprehensive examination that included at least one free-standing PVT, at least two embedded PVTs, and the PAI. Individuals who failed a free standing PVT and at least one embedded PVT were classified into the FAIL group (n = 61), and all others were classified into the PASS group (n = 290). T-tests between the groups on the validity scales were performed. Receiver Operating Characteristic (ROC) analyses were performed and area under the curve (AUC) was calculated...

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