Noncontingent access to preferred stimuli and activities may decrease stereotypic behavior in individuals with autism or other developmental disorders. However, prompted engagement, response interruption and redirection (RIRD), ;35:306-314. wileyonlinelibrary.com/journal/bin 2 | METHOD
| Participant and settingDavid was a 12-year-old male diagnosed with autism spectrum disorder, admitted to an intensive outpatient hospital unit for the assessment and treatment of self-injurious behavior (SIB), aggression, disruptive behavior, and motor stereotypy. His motor stereotypy occurred within leisure contexts at high rates, preventing him from engaging with leisure items or participating in activities in his home and community. David had very limited functional communication and item engagement skills; he could not speak or communicate with gestures but could follow one-step directions. Sessions were conducted in a padded session room (approximately 8 m × 8 m) 5 days perweek for approximately 5 hr per day. The room was equipped with a one-way observation window, and contained two chairs, a desk, and relevant session materials (e.g., toys, discriminative stimuli). Some of these assessment and treatment sessions for stereotypy were conducted concurrently with other assessments/treatment evaluations for other disruptive behavior (e.g., aggression).FALLIGANT AND DOMMESTRUP 307