The conference, dedicated to E.F. Lindquist, focused on three areas in which E.F. Lindquist pioneered: the development of tests of educational achievement, design and analysis techniques in educational research, and an application of electronic data processing to educational problems. Two of the papers are about the contributions to measurement made by E.F. Lindquist while the six formal papers and the comments by the discussants deal with issues of deep concern to educators: How shall we decide what ought to be taught and evaluated, and how shall we determine how much weight to give to each objective? What is the pattern of intellectual growth in young children from disadvantaged backgrounds, and how can the various components be measured? How does the learning of children vary from country to country, and what characteristics of the society and of educational practices are related to the variability? What problems are being encountered in the National Assessment Project, and how are they being solved? What methods are being developed for using computers to tell students about themselves and about the world in which they will be living as adults? What possibilities are there in Bayesian statistical methods for improving the analysis and interpretation of educational data? (Author/BB)