Numerous research studies have been completed on the topic of Autism Spectrum Disorder (ASD). As individuals with this diagnosis are frequently treated by occupational therapists, this review will focus on research that has been completed on ASD that will provide insights into the understanding and treatment of children on the spectrum.

In the 1998 reauthorization of Head Start, Congress mandated that the US Department of Health and Human Services (DHHS) determine, on a national level, the impact of Head Start on the children it serves. As noted by the Advisory Committee on Head Start Research, this legislative mandate required that the impact study address two main research…