1 This book is the product of a one-year project conducted by the Hastings Center, Institute of Society, Ethics and the Life Sciences, during 1976-1977. The Behavior Control Research Group-an ongoing, interdisciplinary working group com- posed of philosophers, psychiatrists, psychologists, social sci- entists, and lawyers-met four times over the course of the year with special consultants with expertise in the field of mental retardation. At those...