Evaluation of a program of systematic instructional procedures for extremely poor retarded children.

A demonstration program was conducted in which 54 innercity children classified as educable mentally retarded were selected on the basis of age, IQ, family income, race, and achievement scores. They were then placed into self-contained classrooms with two classes being taught by precision-teaching procedures and two classes being taught by the methods particular to their teachers. Tesults showed that a high percentage (60 percent) of the children taught by precision-teaching procedured were capable of acquiring the basic skills necessary for regular-class placement.