Shannon Walters, Nora Healy, Kirsten Yurich
Presented at the Pennsylvania Applied Behavior Analysis (ABA) Conference in March 2014
Using a response interruption and redirection (RIRD) procedure (Ahearn, Clark, MacDonald, & Chung, 2007), a treatment team replicated previous success in reducing repetitive gross motor movements and subsequently reduced urine accidents for a non-vocal, 16 year old student diagnosed with autism and intellectual disability. Results suggest that the repetitive gross motor movements and urine accidents constituted a functional class. Prior to any RIRD intervention, Justin demonstrated extremely high rates of repetitive gross motor movements (e.g., taps on surface) and voided small amounts of urine frequently (an average of 9.4 times a day) throughout the school day. Intervention began first for repetitive gross motor movements during instructional sessions due to the level of interference. The RIRD intervention was replicated with urine accidents due to a lack of success during a more traditional toilet training (TT) intervention (Azrin & Foxx, 1971). Clinical observations lead investigators to hypothesize urine accidents and repetitive gross motor movements to comprise a functional class. Based on this hypothesis, the toilet training protocol shifted to replicate the previously successful RIRD intervention.