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Grey, Ian; Healy, Olive; Leader, Geraldine; Hayes, Deirdre – Research in Developmental Disabilities: A Multidisciplinary Journal, 2009
This study aimed to examine the use of a predictive stimulus (Time Timer[TM]) and delayed reinforcement to increase appropriate waiting behavior in a child with developmental disabilities and problem behavior maintained by access to tangible items and activities. The study employed a changing criterion design across settings to gradually increase…
Descriptors: Cues, Developmental Disabilities, Behavior Modification, Reinforcement