Findings from relevant research applying Piaget's theory to mental retardation, psychosis, and autism are reviewed. Many autistic individuals show an arrest in operative functions at the sensorimotor functions. The early arrest interferes with subsequent development of higher-level conceptual, symbolic, and social skills. (Author)

This article uses meta-analytic findings to evaluate six special education interventions: psycholinguistic training, perceptual-motor training, modality-matched instruction, and treatments for attention deficit hyperactivity disorder (stimulant medication, diet modification, and social skills training). Findings are related to decision making in…

This research proposal reviews the literature on the development of mobility skills in students with severe physical disabilities and proposes a single-subject study, using a multiple baseline across subjects design, to evaluate effects of the Mobility Opportunities Via Education (MOVE) Curriculum on the mobility skills of sitting, standing, and…