Early Intervention Outcomes for Toddlers With Autism Spectrum Disorder and Their Families

Autism spectrum disorder (ASD) can be diagnosed as early as 18 months of age. State Early Intervention (EI) programs under Part C of the Individuals with Disabilities Education Act (IDEA) are serving increasing numbers of children with ASD; however, little is known about outcomes of these services. This study evaluated the impact of EI for toddlers with ASD (n = 193) and other disabilities (n = 129) and their families, using measures that included federal Part C outcome indicators. Children with ASD showed reduced maladaptive behaviors and improved social and communication skills on the PDD Behavior Inventory; some also made progress on the Part C child outcome indicators. Families of children with ASD reported that EI helped them achieve many outcomes identified as important to families participating in EI. Results provide a rich description of outcomes experienced by children with ASD and their families in one of the largest EI programs in the United States. Implications for results-driven accountability and future research are discussed.