title: Use of the color trails test as an embedded measure of performance validity.
abstract: One hundred personal injury litigants and disability claimants referred for a forensic neuropsychological evaluation were administered both portions of the Color Trails Test (CTT) as part of a more comprehensive battery of standardized tests. Subjects who failed two or more free-standing tests of cognitive performance validity formed the Failed Performance Validity (FPV) group, while subjects who passed all free-standing performance validity measures were assigned to the Passed Performance Validity (PPV) group. A cutscore of ≥45 seconds to complete Color Trails 1 (CT1) was associated with a classification accuracy of 78%, good sensitivity (66%) and high specificity (90%), while a cutscore of ≥84 seconds to complete Color Trails 2 (CT2) was associated with a classification accuracy of 82%, good sensitivity (74%) and high specificity (90%). A CT1 cutscore of ≥58 seconds, and a CT2 cutscore ≥100 seconds was associated with 100% positive predictive power at base rates from 20 to 50%.
authors.affiliation: Los Angeles Neuropsychology Group, Los Angeles, CA 90025, USA. GHenry0249@aol.com
authors.forename: George K
authors.initials: GK
authors.lastname: Henry
authors.forename: James
authors.initials: J
authors.lastname: Algina
mesh_terms: D000328:Adult; D003072:Cognition Disorders / Q000175:diagnosis / Q000523:psychology; D003118:Color Perception / Q000502:physiology*; D004185:Disability Evaluation; D006233:Persons with Disabilities / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008306:Malingering / Q000175:diagnosis* / Q000523:psychology; D008875:Middle Aged; D009483:Neuropsychological Tests; D012044:Regression Analysis; D015203:Reproducibility of Results; D012189:Retrospective Studies; D012680:Sensitivity and Specificity