In order to determine the validity of placement procedures for the educable mentally retarded (EMR) in Oregon and to examine the value of documents used in certifying EMR pupils, a diagnostic evaluation was made on 97 children who were permanently certified as EMR during the years 1967-68 (IQ scores of 50 through 80). The children were administered medical examinations, educational and psychological tests, and were rated by their teachers on the Walker Behavior Checklist. Results showed that only one child from the sample of 97 was inappropriately placed in an EMR class. Although IQ scores revealed 14 other children with IQ's above 80, it was concluded that the evidence of educational performance and medical information justified the placement. In relation to the value of the forms used by the Oregon Board of Education, indications were made for the need of more stringent visual and hearing acuity tests and for the inclusion of standardized educational tests. The danger of placing a child in an EMR class primarily on the basis of an IQ score was emphasized. (RD)