In the fall of 1948 an experimental program was carried out to try out new test material for inclusion in the Law School Admission Test YLS. This program was similar to one carried out the previous fall. Four experimental forms, WLSX1-4, were given to first-year law students. Forms 1-3 were given at two schools each, and form 4 at three schools. For some of these schools the scores on the Law School Admission test, WLS, were also available, and are included in this report. For Southern California and Cornell the 13 part scores of WLS were separately analyzed. A separate report of the validity of WLS will be made to each school, in a form which will be usable by them. Validation of the final test is a function of the Validity section of the Statistical Analysis Department.