This report is part of the evaluation of a program--Metropolitan Council on Educational Opportunity (METCO)-- for the academic year 1968-69, which provides screening, placement, and busing services for Negro children from predominantly Negro schools in Boston to predominantly white schools in the surrounding suburbs. In this evaluation, METCO and non-random control children were tested close to the beginning and the end of the academic year, a unique feature of this evaluation being the use of siblings of the bused children as the control group; each control child selected was matched as closely as possible on age. With the exception that METCO children gained significantly less than the siblings on mathematics achievement at grade 5-6, there are no significant differences in performance between the two groups from grade 2-12. On a measure of the social environment of the classroom given at grades 3-4 and 5-6, the METCO children perceived their classes as more satisfying; METCO children in grades 5-6 also saw their classes as less difficult and competitive, and as having less friction. The evaluation concludes that school busing programs are a small step in the right direction, but may be doing too little too late. (Author/JW)