Summarizes the findings of quantitative research syntheses to show the variability and unpredictability of special education interventions. Concludes that special education cannot operate on the basis of lawlike relationships but rather must mediate its interventions through what is known about effective schooling that emphasizes the context of…

Discuses three perspectives on literature about children classified as severely subnormal for educational purposes: perceptual motor theories, behavior modification interpretation, and Laban movement. Descriptions of each include investigations, administration, adult participants, observation schedules, teaching processes, and data gathering…