![]() Independent samples t tests demonstrated the associations of the PVT, SVT-CS, and SVT-P groups with informant-report measures. Symptom invalidity for psychopathology symptom reports (SVT-P) and cognitive/somatic symptom reports (SVT-CS) were separately defined via above-threshold scores on two or more SVT criterion. Performance invalidity was defined as failure on two or more PVTs. Informants completed measures on examinee functioning and their own caregiver burden. Examinees completed PVTs, SVTs, cognitive, and self-report measures. We used a sample of 72 veteran-informant dyads undergoing evaluation of possible epilepsy-related neurocognitive disorder to assess the association between examinee response invalidity (i.e., performance and/or symptom invalidity) and informant report measures. Performance validity tests (PVTs) and symptom validity tests (SVTs) detect inaccuracies in examinee-completed measures, though methods for assessing the accuracy of informant reports-which may be inaccurate due to examinee deception, motivation for external incentives (e.g., disability payments), or attempts to validate examinee experiences-remain underexplored. The RBS-19 offers a measure with improved internal consistency and predictive validity compared to the RBS and warrants additional research. Although the removal of the nine problematic items improved the diagnostic accuracy of the scale, it still did not reach the level that is generally considered to be clinically optimal. Both the RBS and RBS-19 had stronger relationships with SVTs relative to PVTs. The 19 empirically supported items, or RBS-19, predicted PVT and SVT failures marginally better than the RBS. The 28-item RBS appears to contain three types of items: those that manifestly address cognitive functioning, those that are supported but do not appear to address cognitive functioning, and nine items that were unrelated to cognition and not statistically supported. Participants completed the MMPI-2 Restructured Form (MMPI-2-RF), PVTs, and an SVT. This study reexamined items comprising RBS with reference to manifest item content, internal consistency, PVTs, and a symptom validity test (SVT) in a sample of 173 predominately White male veterans (M AGE ¼ 50.70, M EDU ¼ 13.73) in a VA outpatient neuropsychology clinic. No study has examined which of these items would have psychometric value when used in clinical neuropsychological evaluations. Developers used empirical keying, which is independent of apparent content, to select items from the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) item pool that distinguished between individuals passing or failing performance validity tests (PVTs). The Response Bias Scale (RBS) was developed to predict non-credible cognitive presentations among disability claimants without head injury. Findings highlight the importance of including individuals with verified TBI when evaluating and developing PVTs. This relative superiority may reflect that individuals with verified TBI are more likely to perseverate on prior instructions during DS Sequencing. traditional RDS demonstrated the best classification accuracy with respect to specificity/sensitivity balance. A greater percentage of TBI scored RDS Sequencing < 1 compared to SIM and HC.Ĭonclusion: In the context of moderate-to-severe TBI, the DS-derived PVTs showed comparable discriminability. HC however, the traditional RDS showed the highest sen�sitivity when approximating 90% specificity for SIM vs. ROC analy�ses indicated that RDS variables were comparable predictors of SIM vs. ![]() Post hoc contrasts revealed that only RDS Forward and the trad�itional RDS differed significantly between SIM and TBI. Results: Kruskal–Wallis tests indicated that all DS indices differed significantly across groups. ![]() Participants completed the WAIS-IV DS subtest in the context of a larger test battery. Methods: Participants included 64 adults with moderate-to-severe TBI (TBI), 51 healthy adults coached to simulate TBI (SIM), and 78 healthy comparisons (HC). This study compared DS-derived PVT classification accuracies in a design that included adults with verified TBI. Reports have indicated that these new performance validity tests (PVTs) are superior to the traditional RDS however, comparisons in the context of known neurocognitive impairment are sparse. Objective: The addition of Sequencing to WAIS-IV Digit Span (DS) brought about new Reliable Digit Span (RDS) indices and an Age-Corrected Scaled Score that includes Sequencing trials. ![]()
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