Nonsuicidal self-injury (NSSI) has been a longstanding clinical problem in the field of developmental disabilities (Luiselli, Matson, St Singh, 1992;Tate St Baroff, 1966). Prevalence studies estimate that between 10% and 20% of people who have developmental disabilities engage in NSSI (Oliver, Murphy, St Corbett, 1987; Schtoedet, Schroeder, Smith, St Dalldorf, 1978). As summarized by Richman and Lindauer (2005), NSSI is frequently associated with individuals who have profound intellectual disability, sensory or physical handicaps, and certain genetic conditions, such as Cornelia de Lange syndrome and Lesch-Nyhan disease (Cataldo St Harris, 1982).Self-injurious topography among people with developmental disabilities includes banging the head and body against objects; sttiking the face and body with the hands; scratching, biting, and excoriating the skin; pressing the fingers against the eyes; and pulling the halt. Many children and adults perform multiple NSSI responses and remain treatment resistant for many years. The chronic display of NSSI produces tissue damage, body disfigurement, and increased risk of infection because of open wounds. Furthermore, high-frequency and persistent NSSI interferes with educational and habilitation programming, which are so vital in the lives of people who have learning and behavior challenges. NSSI 157