This article reviews elements of a well-designed treatment study and evaluates the state of knowledge about comprehensive treatment programs for children with autism. Several suggestions are made for improving future studies, including more rigorous designs, searching for active ingredients of treatment programs, and measuring change. (Contains…

This article analyzes outcome measures used in intervention research with young children with autism, including 72 reports evaluating specific intervention practices and 15 reports of complete intervention programs. Results indicate measurement of mediating variables is essentially absent in the evaluation reports and there is a lack of other…