This newsletter describes a research design enabling descriptive, comparative, evaluative follow-up studies of individual development in social contexts related to schooling. In addition, it describes a research project focusing mainly on evaluative studies of the ability of the educational system to confer, on different individuals in various circumstances, "equal opportunities to equivalent education." The research project used (1) data from selected large-scale Swedish longitudinal studies dealing with conditions in schools; and (2) administrative data from schools plus project data collected from two cohorts of students and their parents residing in 29 selected municipalities. The first cohort was composed of about 10,000 students who were in grade 6 of compulsory school in 1979-80. The second and younger cohort, numbering roughly 9,500, consisted of students in grade 3 in 1982. Measures used were student and parent questionnaires, standardized achievement tests, and ability tests. Stratification variables employed in selecting most of the 29 municipalities included population, proportion of Socialist-held seats on the municipal council, proportion of residents employed in public administration, and proportion of immigrant students in compulsory schools. Overall, the study involved a follow-up investigation of several consecutive age groups, with the first assessment in 1938 and the last planned for for 1985 or later. (RH)