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Assessment, Vol. 8, No. 2, 221-236 (2001)
DOI: 10.1177/107319110100800210
© 2001 SAGE Publications

The Detection of Malingered Posttraumatic Stress Disorder with MMPI-2 Fake Bad Indices

Jon D. Elhai

Steven N. Gold

Alfred H. Sellers

William I. Dorfman

Nova Southeastern University

This investigation explored the effect of posttraumatic stress disorder (PTSD) simulation on Minnesota Multiphasic Personality Inventory-2 (MMPI-2) responses, to detect malingered from genuine PTSD. Sixty-four adult PTSD outpatients at a child sexual abuse (CSA) survivor treatment program were compared with 85 adult college students instructed and trained to malinger PTSD. MMPI-2 overreporting indices examined were F, I F-Fb l, F-K, F(p), Ds2, O-S, OT, and FBS. A stepwise discriminant analysis identified F(p), F-K, and O-S as the best malingering predictors. A predictive discriminant analysis yielded good hit rates for the model, with impressive cross-validation results. Cutoff scores were assessed for the model's predictors. Clinical implications for detecting malingered PTSD using the MMPI-2 are discussed.

Key Words: MMPI-2 • malingering • Posttraumatic Stress Disorder • child sexual abuse


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