B - 141 Research Review of Symptom and Performance Validity Tandem: Inventory of Problems-29 and Memory Module

Abstract Objective Consistent with the NAN expectations, the American Academy of Clinical Neuropsychology (Sweet et al., 2021) asserted that neuropsychologists should include symptom validity tests (SVT) and performance validity tests (PVT) to assess the credibility of psychological and cognitive complaints. Aligned with this declaration, the Inventory of Problems–29 (IOP-29), an SVT, and its Memory Module (IOP-M), a PVT based on the respondent’s recall of the IOP-29 items. Our objective is to evaluate the research support of these measures to discriminate credible from noncredible presentations. Data Selection Since the IOP was introduced in 2017, more than 20 peer-reviewed research studies on the IOP-29 and 10 studies including both the IOP-29 and IOP-M have been published with 4 meta-analyses or systematic reviews. These publications present various, commonly used statistical analyses of validity and efficacy, e.g., sensitivity and specificity, along with comparisons to other SVTs and PVTs. Data Synthesis In the quantitative research literature, the IOP-29 and IOP-M have demonstrated efficacy across countries and languages in discriminating credible from noncredible presentations related to psychosis, PTSD, depression, anxiety, and neuropsychological disorders. Conclusions These findings support adding this tandem to the multi-method evaluation of the credibility of mental health and neuropsychological presentations. The brevity of administering these two tests, i.e., approximately 20 minutes total, suggests that the cost–benefit might be strong. More research with biomarkers and specific neuropsychological disorders might be needed along with more publications for which the authors do not include the test developers.