title: Detection of feigned head injury symptoms on the MMPI-2 in head injured patients and community controls.
abstract: MMPI-2 results from 39 moderately to severely head injured (HI) and 44 community volunteer (CV) participants given instructions to feign symptoms or answer honestly during an analog forensic neuropsychological examination were compared. No significant effects for HI or the interaction between the HI and instruction set (IS) factors were noted on either clinical or selected validity scales (F, Fb, Fp, Ds2, FBS). However, the main effect of IS was significant for both clinical and validity scales (median Cohen's d=1.34 and 1.39, respectively). Most validity scales were characterized by perfect specificity rates but low to modest sensitivity, whereas FBS had both moderate sensitivity and specificity. Logistic regressions showed that the F and Ds2 scales made a significant contribution independent of motivational tests to the identification of feigning during neuropsychological examination.
authors.affiliation: Department of Psychology, University of Kentucky, 115 Kastle Hall, Lexington, KY 40506-0044, USA.
authors.forename: Chantel S
authors.initials: CS
authors.lastname: Dearth
authors.forename: David T R
authors.initials: DT
authors.lastname: Berry
authors.forename: Chad D
authors.initials: CD
authors.lastname: Vickery
authors.forename: Victoria L
authors.initials: VL
authors.lastname: Vagnini
authors.forename: Raymond E
authors.initials: RE
authors.lastname: Baser
authors.forename: Stephen A
authors.initials: SA
authors.lastname: Orey
authors.forename: Dona E
authors.initials: DE
authors.lastname: Cragar
mesh_terms: D000328:Adult; D001930:Brain Injuries / Q000175:diagnosis / Q000523:psychology*; D003937:Diagnosis, Differential; D005260:Female; D015600:Glasgow Coma Scale; D006801:Humans; D016015:Logistic Models; D008950:MMPI / Q000706:statistics & numerical data*; D008297:Male; D008306:Malingering / Q000175:diagnosis* / Q000523:psychology; D008875:Middle Aged; D011446:Prospective Studies; D011594:Psychometrics / Q000706:statistics & numerical data; D012016:Reference Values; D015203:Reproducibility of Results