Ecological Validity of Neuropsychological Tests Focus on the California Verbal Learning Test and the Wisconsin Card Sorting Test

Abstract

To date, few studies have assessed the ecological validity of current measures of memory and executive functioning, particularly the California Verbal Learning Test (CVLT) and the Wisconsin Card Sorting Test (WCST). A battery of tests, including the CVLT and the WCST, was administered to 28 severely head-injured adults who were 1 year or more postinjury. Hierarchical linear regression was performed to assess the relationship between these cognitive tests and work functioning while statistically controlling for physical disability, emotional distress, and memory compensation strategies utilized by the participants. Results suggest that the CVLT was best at predicting performance on the job; however, the CVLT and the WCST were about equally predictive of the type of position held by a participant. Hence, this study demonstrates the ecological validity of measures of memory and executive functioning for predicting work-related skills.

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