title: Feigned neurocognitive deficit: taxon or dimension?
abstract: The purpose of this study was to explore the latent structure of feigned neurocognitive deficit. Scores on the Test of Memory Malingering (TOMM), Letter Memory Test (LMT), and Victoria Symptom Validity Test (VSVT) served as indicators in a taxometric investigation of 527 compensation-seeking adults using three taxometric procedures -- mean above minus below a cut (MAMBAC), maximum covariance (MAXCOV), and latent-mode factor analysis (L-Mode). All three procedures showed evidence of dimensional latent structure. The fact that feigned neurocognitive symptomatology is ordered along a continuum rather than bifurcating into distinct categories has important implications for theory, research, and clinical practice.
authors.affiliation: Psychology Services, Federal Correctional Institution-Schuylkill, Minersville, PA 17954-0700, USA. gwalters@bop.gov
authors.forename: Glenn D
authors.initials: GD
authors.lastname: Walters
authors.forename: David T R
authors.initials: DT
authors.lastname: Berry
authors.forename: Richard
authors.initials: R
authors.lastname: Rogers
authors.forename: Joshua W
authors.initials: JW
authors.lastname: Payne
authors.forename: Robert P
authors.initials: RP
authors.lastname: Granacher
mesh_terms: D000328:Adult; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008306:Malingering / Q000145:classification* / Q000175:diagnosis* / Q000523:psychology; D008569:Memory Disorders / Q000175:diagnosis*; D008875:Middle Aged; D009483:Neuropsychological Tests; D015203:Reproducibility of Results