Forty-nine children (ages 8-17) with mental retardation recognized facial expressions less accurately than did subjects without retardation who were matched on chronological age. Mental age-matched groups showed no differences in accuracy at a younger mental age, but a difference was found at an older mental age. (Author/JDD)

This handbook is a cooperative project, the outcome of a conference called by the United States Office of Education to consider the problems of curriculum adjustment for mentally retarded children. The members of the conference are the joint authors of this bulletin. In October 1934, 13 leaders in the education of retarded children, working in…

The usefulness of the Preschool Preposition Test (PPT) as a cognitive screening and diagnostic tool for handicapped children is demonstrated through results of eight independent studies. The subjects were 354 children and youths, aged two to 20 years, with various handicaps: mentally retarded, autistic-like, moderately emotionally disturbed,…