title: Clinical decision making in response to performance validity test failure in a psychiatric setting.
abstract: This study examined the clinical utility of a performance validity test (PVT) for screening consecutive referrals (N = 436) to a neuropsychology service at a state psychiatric hospital treating both civilly committed and forensic patients. We created a contingency table with Test of Memory Malingering (TOMM) pass/fail (355/81) and secondary gain present/absent (181/255) to examine pass rates associated with patient demographic, clinical and forensic status characteristics. Of the 81 failed PVTs, 48 had secondary gain defined as active criminal legal charges; 33 failed PVTs with no secondary gain. These individuals tended to be older, female, Caucasian, and civilly committed compared with the group with secondary gain who failed. From estimations of TOMM False Positive Rate and True Positive Rate we estimated base rates of neurocognitive malingering for our clinical population using the Test Validation Summary (TVS; Frederick & Bowden, 2009 ). Although PVT failure is clearly more common in a group with secondary gain (31%), there were a number of false positives (11%). Clinical ratings of patients without gain who failed suggested cognitive deficits, behavioral issues, and inattention. Low scores on PVTs in the absence of secondary gain provide useful information on test engagement and can inform clinical decisions about testing.
authors.affiliation: a Department of Graduate Psychology , James Madison University , Harrisonburg , VA , USA.
authors.forename: Bernice A
authors.initials: BA
authors.lastname: Marcopulos
authors.forename: Beth A
authors.initials: BA
authors.lastname: Caillouet
authors.forename: Christopher M
authors.initials: CM
authors.lastname: Bailey
authors.forename: Chriscelyn
authors.initials: C
authors.lastname: Tussey
authors.forename: Julie-Ann
authors.initials: JA
authors.lastname: Kent
authors.forename: Richard
authors.initials: R
authors.lastname: Frederick
mesh_terms: D000328:Adult; D000367:Age Factors; D003657:Decision Making; D005260:Female; D006801:Humans; D008297:Male; D008306:Malingering / Q000175:diagnosis*; D008568:Memory; D008569:Memory Disorders / Q000175:diagnosis*; D008875:Middle Aged; D009042:Motivation; D009483:Neuropsychological Tests; D011570:Psychiatry; D015203:Reproducibility of Results; D012737:Sex Factors
keywords: Clinical decision making.; Forensic; Performance validity testing; Schizophrenia; Test engagement