Cross-validation of the WAIS-IV Similarities incidental learning task.

IF 1.4 4区 心理学 Q4 CLINICAL NEUROLOGY
Brian D Gradwohl, Amber D Rochette, Andrew C Hale, Sarah D Patrick, Dustin B Hammers, Robert J Spencer
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引用次数: 0

Abstract

The incidental learning index based on Similarities subtest (IL-Sim) from the Wechsler Adult Intelligence Test-Fourth Edition (WAIS-IV) has shown promise as a screening measure for memory impairment. We aimed to examine the reliability, convergent and divergent validity, and the utility of IL-Sim index in classifying at least mild and severe memory impairment. One hundred and fifty-three Veterans completed the WAIS-IV Similarities subtest and Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) as part of their clinical evaluations. IL-Sim had acceptable internal consistency (Cronbach's α = .85). Among RBANS indices, IL-Sim had the largest association with the Delayed Memory Index (r = .69), followed by the Immediate Memory Index (r = .59), and relatively smaller associations with non-memory indices (rs = .26-.38). For both younger (ages 40-69) and older (ages 70-87) adults, IL-Sim had excellent discriminability between patients without memory problems and those with at least mildly or severely impaired RBANS memory (AUC = .83-.87). To enhance the ease of interpretation for IL-Sim scores, we presented logistic regression-derived probabilities across multiple base rates for each age group and impairment severity. IL-Sim showed strong convergent and divergent validity and discriminated along the memory impairment continuum highlighting its promise as an efficient screening measure of memory.

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来源期刊
Applied Neuropsychology-Adult
Applied Neuropsychology-Adult CLINICAL NEUROLOGY-PSYCHOLOGY
CiteScore
4.50
自引率
11.80%
发文量
134
期刊介绍: pplied Neuropsychology-Adult publishes clinical neuropsychological articles concerning assessment, brain functioning and neuroimaging, neuropsychological treatment, and rehabilitation in adults. Full-length articles and brief communications are included. Case studies of adult patients carefully assessing the nature, course, or treatment of clinical neuropsychological dysfunctions in the context of scientific literature, are suitable. Review manuscripts addressing critical issues are encouraged. Preference is given to papers of clinical relevance to others in the field. All submitted manuscripts are subject to initial appraisal by the Editor-in-Chief, and, if found suitable for further considerations are peer reviewed by independent, anonymous expert referees. All peer review is single-blind and submission is online via ScholarOne Manuscripts.
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