A national survey of 94 Directors of Special Education was conducted to ascertain: (1) the number of students referred for psychoeducational evaluation; (2) the number of referred students evaluated; and (3) the number of evaluated students placed in special education programs. For each of the school years during 1977-80, the percentage of referred students who were evaluated was reported as 92% and the percentage of evaluated students who received special education was 73%. Although the probabilities associated with the evaluation of referred students and delivery of special education services to evaluated students were high, there was considerable variance; there were differences between rural, urban, and suburban communities, and between geographic regions of the United States. (Author/CL)