Research conducted by the Law School Admission Council since the development of the Law School Admission Test (LSAT) in 1948 is described. An overview of the research topics is provided, and relevant published reports are cited in 61 footnotes. The following topics of study are discussed: (1) use and validity of traditional predictors of law school success--LSAT and undergraduate grade point average (UGPA); (2) prediction of LSAT scores and grades for applicant subgroups--including blacks, whites, Chicanos, females, culturally deprived, males, college majors, and foreign candidates; (3) other predictors, including LSAT tests of writing ability and of general background, Myers-Briggs type indicators, interviews, and faculty recommendations; (4) undergraduate grades; (5) law school grades, which serve as the criteria against which the effectiveness of predictors are measured; (6) development of new test item types; and (7) prediction of success in the legal profession. (GDC)