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Peer reviewedHorner, Robert H.; And Others – Journal of Applied Behavior Analysis, 1991
Two studies of three youths (ages 12-14) with severe mental retardation, who used aggression and self-injury to avoid difficult instructional situations, found that simple commands interspersed among more challenging instructional trials were effective at increasing the learners' responsiveness to instructions and decreasing levels of problem…
Descriptors: Aggression, Behavior Change, Behavior Disorders, Difficulty Level
