A COMPARISON OF 2 ADJUSTMENT METHODS FOR IMPROVING THE PREDICTION OF LAW-SCHOOL GRADES

In this study, two statistical approaches for adjusting grades were te sted on data obtained from four American law schools. These approaches were previously validated using data on undergraduates but have not b een used in a study of postgraduate performance. Neither method yielde d consistent improvements in the predictive validity of Law School Adm ission Test (LSAT) scores and undergraduate grades. The single excepti on was for School D, where a significant improvement in the correlatio n of test scores with law school grades was observed. It is hypothesiz ed that the greater variability of LSAT scores in School D was the mai n reason for this result.