Journal of clinical psychology
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Administered the Bender-Gestalt (BG) and Minnesota Percepto-Diagnostic Test (MPD) to 69 first-grade children prior to administration of the California Achievement Test (CAT). Order of administration for the BG and MPD was counterbalanced to control for practice effects. Correlations (rs) were computed between the 9 CAT subtests and scores from the BG and MPD. ⋯ Both the DD and SpCD scores showed a significantly higher negative r with Reading Vocabulary, Total Reading, and Arithmetic Computation than the BG. Furthermore, both types of MPD scores showed a much higher average r with the 9 CAT subtests than was evident for the BG. These findings suggest that DD and SpCD scores from the MPD provide a more sensitive measure of deficits in visual-motor perception than the Koppitz score from the BG.