The criterion most frequently used in studies designed to assess the predictive validity of measures used in college admission has been the freshman-year GPA. It is not self-evident that the first-year GPA provides either a sufficient or a representative sample of a student's academic performance. Questions have been raised regarding the validity of admissions measures for predicting longer-term performance in college. This is the report of a systematic review of research bearing on (a) the validity of admissions measures for predicting GPA that reflects performance beyond the freshman year—i.e., longer-term cumulative or independently computed post-freshman-year GPA, such as senior-year GPA; (b) the comparative relevance and utility of freshman-year, cumulative, and independently computed post-freshman-year GPA as criteria for the validation of admissions measures. Among other things, the research reviewed lends support to the traditional practice of employing the freshman-year GPA in admissions-related predictive validity studies. (48pp.)