Introduction: The Rey 15-item Test is a public-domain, memory-based performance validity test, frequently used in clinical settings. Various efforts have been made to modify the test to make it more sensitive and more robust to effects of lower education and intelligence. The most promising of these is the addition of a recognition trial to the existing free recall paradigm.
Method: The present study explored the use of the Rey-15 + Recognition Trial in a sample of 155 younger U.S. military veterans seen for evaluation of mild traumatic brain injury or attention deficit hyperactivity disorder (50 cases classified as invalid, 105 classified as valid).
Results: Optimal classification accuracy was obtained on the Combination index (cutoff ≤23, sensitivity = 50%, specificity = 95%) and the Recognition Hits score (cutoff ≤11, sensitivity = 52%, specificity = 93%). The Free Recall score had somewhat lower sensitivity when a similar 95% specificity threshold was set (cutoff ≤11, 38% sensitivity). A qualitative error score used in previous studies did not improve classification accuracy.
Conclusions: The Rey-15 + Recognition Trial proved to be effective, with particular advantage bestowed by the recognition trial. Implications of these findings in the context of the study's clinical sample of military veterans and in the broader literature are discussed.
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