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- Title
C-03 Embedded Validity Indicators in Conners' Continuous Performance Test, Second Edition (CPT-II) Discriminate Valid from Invalid Profiles More Accurately during the Repeat Administration in a Psychiatric Sample.
- Authors
Erdodi, L; Pelletier, C; Tyson, B; Lichtenstein, J; Holcomb, M; Condiracci, C; Roth, R
- Abstract
Objective: Although reported to be effective as a performance validity test (PVT) in TBI and ADHD, little is known about the ability of the CPT-II to model performance validity in psychiatric patients. Also, while repeat CPT-II administrations have been shown to enhance its diagnostic accuracy in ADHD evaluations, the effect of such strategic redundancy on validity assessment is largely unknown. Method: CPT-II subtests previously identified as embedded PVTs (ePVTs) were systematically tested in a sample of 30 patients with a variety of psychiatric conditions but without credible evidence of neuropsychological impairment. Neurocognitive profiles were classified as valid (n = 18) and invalid (n = 12) using a composite measure based on 20 independent PVTs. The CPT-II was administered twice, at the beginning and at the end of the testing session. Results: Significant improvement in signal detection properties was observed from Time 1 to Time 2 for Commission T ≥ 60, Perseveration T ≥ 70, Variability T ≥ 60 and the combination of Commission T ≥ 60 and Variability T ≥ 60. No difference was found for Omission T ≥ 80 and Hit RT T ≥ 60. Negligible loss in sensitivity was noted on Hit RT SE T ≥ 90. Conclusion(s): Results suggest that the ePVTs in the CPT-II developed in TBI and ADHD samples generalize to other clinical populations. Furthermore, invalid neuropsychological profiles are common in psychiatric patients (40% of the current sample). Finally, repeating the CPT-II or administering it later during the day tends to improve its signal detection properties as a PVT.
- Subjects
CONTINUOUS performance test; NEUROPSYCHOLOGICAL tests; MENTAL illness; COGNITIVE neuroscience; PATHOLOGICAL psychology; CLINICAL neuropsychology
- Publication
Archives of Clinical Neuropsychology, 2014, Vol 29, Issue 6, p572
- ISSN
0887-6177
- Publication type
Article
- DOI
10.1093/arclin/acu038.184