 A large percentage of individuals with autism spectrum disorder ASD are delayed in achieving continence with bowel movements or never achieve it at all i.e., they meet criteria for encopresis. This problem has tremendous ramifications for these individuals and their families because encopresis restricts them from integration with peers, limits access to educational opportunities, and carries significant social stigma. Previous interventions for encopresis in this population have either been unsuccessful or required implementation over very long periods. 