Cross-Validation of the MMPI-2 in Detecting Malingered Posttraumatic Stress Disorder
Posttraumatic Stress Disorder, Malingering, Child Sexual Abuse
Journal of Personality Assessment
We attempted to cross-validate findings from a previous study (Elhai, Gold, Sellers, & Dorfman, in press) using a clinical sample of combat-related war veterans to distinguish genuine from malingered posttraumatic stress disorder (PTSD) on the MMPI-2 (Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989). The MMPI-2 scores of 124 male combat war veterans at the PTSD outpatient treatment program of a Veterans Affairs Medical Center were compared with those of 84 adult college students instructed and trained to malinger PTSD. MMPI-2 overreporting variables examined were F, |F - Fb|, F - K, F(p), Ds², O-S, OT, and FBS. A stepwise discriminant analysis identified F, |F - Fb|, F - K, Ds², O-S, and OT as the best malingering predictors. A predictive discriminant analysis yielded good hit rates for the model with impressive cross-validation results. We assessed cutting scores for the predictors of the model. We discuss clinical implications for using the MMPI-2 to distinguish malingered PTSD from combat-related PTSD.
Elhai, J. D.,
Gold, P. B.,
Frueh, B. C.,
Gold, S. N.
(2000). Cross-Validation of the MMPI-2 in Detecting Malingered Posttraumatic Stress Disorder. Journal of Personality Assessment, 75(3), 449-463.
Available at: http://nsuworks.nova.edu/cps_facarticles/476