1 School Dist.
Adaptive behavior is age-based and is defined by the expectations and standards of others.
It also provides an Adaptive Behavior Composite score. The Vineland has a standard score mean of 100 and a standard deviation of 15. For example, a Vineland standard score of 115 means that the obtained raw score was one standard deviation above the mean of the norm group. Each standard score translates directly into a percentile rank. For example, a percentile rank of 50 means that the raw score was the same as or better than the scores of 50 percent of people of similar age in the norm sample.