This study was designed to address questions of differential validity and questions of differential prediction in the law school admission process. The former were evaluated by comparing the magnitude of validity coefficients resulting from both simple and multiple correlations between first-year performance in law school and the traditional predictor variables, score on the Law School Admission Test (LSAT), and undergraduate grade-point average. The latter were evaluated by testing the regression systems for the different subgroups. The sample was drawn from the 1986, 1987, and 1988 entering law school classes, using data from 54 law schools, each of which enrolled more than 30 students who identified themselves as Black, Mexican American, or Hispanic American. Validity data do not support the concern that the LSAT score or the traditional combination of LSAT score and undergraduate grade-point average are less valid for any of the minority groups than they are for the white group. The data do suggest one exception: the use of undergraduate grade point average alone as a predictor seems to be significantly less valid for black students than for whites. Results also show that when a regression equation is developed using combined data from white and minority students, the equation tends to overpredict law school performance for minority students. There is nothing in these data to suggest that using the traditional predictors disadvantages minority applicants in the law school admission process. Using a prediction system based only on minorities would present a bleaker picture for minorities, but the data do indicate that over prediction is not true for every applicant. (Contains 16 tables and 14 references.) (SLD)