Detecting Symptom Exaggeration in Combat Veterans Using the MMPI-2 Symptom Validity Scales: A Mixed Group Validation

Autor/inn/en	Tolin, David F.; Steenkamp, Maria M.; Marx, Brian P.; Litz, Brett T.
Titel	Detecting Symptom Exaggeration in Combat Veterans Using the MMPI-2 Symptom Validity Scales: A Mixed Group Validation
Quelle	In: Psychological Assessment, 22 (2010) 4, S.729-736 (8 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1040-3590
DOI	10.1037/a0020973
Schlagwörter	Posttraumatic Stress Disorder; Validity; Personality; Veterans; Symptoms (Individual Disorders); Evaluation Methods; Males; Psychological Evaluation; Minnesota Multiphasic Personality Inventory + Suchen Sie Ihr Suchwort? Gültigkeit; Personalität; Kriegsteilnehmer; Veteran; Psychiatrische Symptomatik; Male; Männliches Geschlecht; Psychosoziale Beurteilung
Abstract	Although validity scales of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2; J. N. Butcher, W. G. Dahlstrom, J. R. Graham, A. Tellegen, & B. Kaemmer, 1989) have proven useful in the detection of symptom exaggeration in criterion-group validation (CGV) studies, usually comparing instructed feigners with known patient groups, the application of these scales has been problematic when assessing combat veterans undergoing posttraumatic stress disorder (PTSD) examinations. Mixed group validation (MGV) was employed to determine the efficacy of MMPI-2 exaggeration scales in compensation-seeking (CS) and noncompensation-seeking (NCS) veterans. Unlike CGV, MGV allows for a mix of exaggerating and nonexaggerating individuals in each group, does not require that the exaggeration versus nonexaggerating status of any individual be known, and can be adjusted for different base-rate estimates. MMPI-2 responses of 377 male veterans were examined according to CS versus NCS status. MGV was calculated using 4 sets of base-rate estimates drawn from the literature. The validity scales generally performed well (adequate sensitivity, specificity, and efficiency) under most base-rate estimations, and most produced cutoff scores that showed adequate detection of symptom exaggeration, regardless of base-rate assumptions. These results support the use of MMPI-2 validity scales for PTSD evaluations in veteran populations, even under varying base rates of symptom exaggeration. (Contains 3 tables.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10