Vineland social maturity scale norm examined--the Wisconsin experience with 0- to 3-year-old children.

Inspection of the Vineland social Maturity Scale scores of a representative sample of 150 nonretarded children between the ages of 2 weeks and 36 months revealed that the social ages of most of these children using the original norm table were consistently higher than their chronological ages. A table of adjusted Vineland ages based on the performance of these children was provided, along with the original Vineland norms. Comparison of the original and adjusted scores suggests that the social ages on the Vineland may be overestimated in the 1- to 2-year range.