Rojahn, JohannesMedeiros, Kristen2013-08-092013-08-092013https://hdl.handle.net/1920/8213ABSTRACT118 pagesenCopyright 2013 Kristen MedeirosDevelopmental psychologyAggressive behaviorChallenging behaviorDevelopmental disabilitiesIntellectual disabilitiesSelf-injurious behaviorStereotyped behaviorChallenging Behavior in Intellectual and Developmental DisabilitiesDissertation