This report summarizes the results of a study of the Child Development Centers (CDC), a program operated by the Seattle, Washington public schools to provide social services to students from four to eight years old. Preliminary results from a long-term follow-up study of students successfully terminated from the CDC program between 1973 and 1977 are presented. The report begins with a description of the program and an outline of the evluation procedures used. Information is then presented regarding the maintenance of gains by students on the Behavioral Rating Form and in school attendance. It is shown that, overall, these gains have persisted for an average of three years after program completion. A comparison of former CDC students' Behavioral Rating characteristics and school attendance with student groups not receiving CDC service is also provided. No significant difference in attendance rates is revealed and Behavioral Rating scores show no significant difference between students with behavioral problems who received CDC aid and those who did not. Appended are data on the academic achievement characteristics of CDC program participants. (APM)