Cross-validation data for a test for the investigation of verbal regulation of behavior (VRB; Schubert, 1969) were reported. The initial results were confirmed with a sample of 168 clinical Ss aged 2 to 15 yr. VRB scores were significantly related to age and intelligence (p < .001). Split-half reliability of the final test battery was .92 (N = 100) and the correlation between VRB scores and MA was .79 (N = 84).
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