Relationship between the Vineland Adaptive Behavior Scales-Classroom Edition and the Vineland Social Maturity Scales

Results of an investigation of the relationship between the Vineland Adaptive Behavior Scales-Classroom Edition (Harrison, 1985) and its predecessor, the Vineland Social Maturity Scale (Doll, 1953) were presented. Subjects were both educable and trainable mentally retarded children. The concurrent validity of the two scales was moderate, r = .57 to .66. Of greater importance was the finding that the mean scores obtained from the newer instrument were significantly lower than the mean scores for the Vineland Social Maturity Scale.