Data were collected to develop special norms for the Vineland Adaptive Behavior Scales (VABSs) for educable mentally retarded (EMR) and trainable mentally retarded (TMR) children. These scales currently report special norms for retarded adults. The study also sought to determine if the low to moderate relationship typically found between intelligence and adaptive behavior scores of normal children is supported for samples of EMR and TMR children using the VABSs. Practitioners of the VABSs were contacted and asked to record demographic information; placement category; Vineland Survey Form (VSF), Vineland Expanded Form (VEF), and Vineland Classroom Edition (VCE) scores; intelligence test scores; and other test data concerning their clients. Data forms were studied for 204 EMR children and 113 TMR children ranging in age from 3 through 18 years at the time of VSF or VEF administration, and from 3 to 12 years at the time of VCE administration. Three tables of supplementary norm group percentile ranks were prepared. As expected, the mean Vineland scores for TMR children were lower than were those for EMR children. The means of VSF and VEF scores for EMR children indicate that the sample typically scored in the low range. However, means for the VCE daily living skills and socialization domains were in the moderately low range for EMR children. Most correlations with measures of intelligence indicated that the low to moderate relationship between intelligence and adaptive behavior was supported for EMR children. Seven tables present study data. (SLD)