This paper presents findings from the final two years of a four-year study investigating a manualized social treatment program for high-functioning children with autism spectrum disorders. The study sought to (1) replicate and expand findings from years one and two; (2) compare outcomes of participants who received response-cost feedback versus…

While deficits in social interaction are central to autism, the sibling relationship has been found to provide a key medium for the development of such skills. Naturalistic observations of sibling pairs including children with autism and controls with Down syndrome were made across two time periods, twelve months apart. Consistent with the…