The predictive validity of the equation used for determining entrance into the University of Washington's freshman class during the 1978-79 academic year is examined. The sample was comprised of all freshmen entering the university directly from high school in autumn quarter 1974 who had been tested through the Washington Pre-College Test Battery in partial fulfillment of the entrance requirement. Five admission indices were computed based solely on data for each of the five following groups: arts and sciences, business administration, engineering, nursing, and total. For each group, the correlation of the cumulative undergraduate grade point average as of summer quarter 1977 with each of three admissions indices was computed and compared. An earlier admissions index used in academic years 1974-75 to 1977-78 was one of the indices. Data on other academic variables as of summer 1977, including the number of quarters attended and number of credits earned, are also presented. (Author/SW)