title: Performance of compensation seeking and non-compensation seeking samples on the Victoria symptom validity test: cross-validation and extension of a standardization study.
abstract: Previous research suggests that the Victoria Symptom Validity Test (VSVT) is effective in confirming or disconfirming the validity of a patient's reported cognitive impairments. We sought to cross-validate the findings of the VSVT standardization study, and to determine cut-off scores that are most efficient in discriminating our samples of compensation-seeking patients, primarily with mild traumatic brain injury (CS; n = 53), and non-compensation seeking patients with intractable seizures (NCS; n = 30). All patients in the NCS sample scored in the "valid" range on the VSVT difficult memory items, compared to only 58.5% of the CS sample. We also identified VSVT measures and cut-off scores maximally efficient in discriminating these samples. This study confirms previous research that non-compensation seeking patients do well on the VSVT, but that many compensation seeking patients perform poorly on this measure.
authors.affiliation: Rush-Presbyterian-St. Luke's Medical Center, Chicago, IL 60612, USA. cgrote@rush.edu
authors.forename: C L
authors.initials: CL
authors.lastname: Grote
authors.forename: E K
authors.initials: EK
authors.lastname: Kooker
authors.forename: D C
authors.initials: DC
authors.lastname: Garron
authors.forename: D L
authors.initials: DL
authors.lastname: Nyenhuis
authors.forename: C A
authors.initials: CA
authors.lastname: Smith
authors.forename: M L
authors.initials: ML
authors.lastname: Mattingly
mesh_terms: D000328:Adult; D001930:Brain Injuries / Q000175:diagnosis / Q000523:psychology; D003072:Cognition Disorders / Q000175:diagnosis*; D004569:Electroencephalography; D004827:Epilepsy / Q000523:psychology / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008568:Memory; D008875:Middle Aged; D009042:Motivation; D009483:Neuropsychological Tests / Q000592:standards*; D012015:Reference Standards; D015203:Reproducibility of Results