Further Evidence concerning the Validity of Kagan's Comments on the Clinical Interpretation of the Bender Gestalt

Abstract

The validity of Kagan's hypothesis regarding the involvement of impulsivity in the reproduction of Bender-Gestalt drawings was examined for 76 first graders from a suburban school. The correlation between Koppitz errors on the Bender and impulsivity as defined by mean latency on the Matching Familiar Figures Test was –.31 ( p < .01) but the value of r decreased to only –.23 when IQ was partialled out. These findings did not support Kagan's hypothesis since latency for matching accounted for only 5% of the variance in Bender errors. That is, Koppitz errors on the Bender showed almost, if not complete, discriminant validity from impulsivity as defined by latency for matching figures. The r between Bender errors and total working time on the Bender itself was negligible, indicating that Koppitz errors cannot be explained in terms of impulsivity as defined by inadequate working time.

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