Research evidence regarding the educability of profoundly retarded persons is reviewed. Attention is focused on five areas of research: the development of motor skills, self-help skill training, social and communication behavior development, the reduction of severe maladaptive behaviors, and the impact of environmental factors on learning. (SEW)

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…

This description of toddlers and preschool children emphasizes how young children think and describes the development of self-concept. Language development and antisocial and prosocial behavior are also discussed. The exploration of children's thought processes begins with two principles: (1) Concepts originate in activity; and (2) Motor…