Heckman, James J.; Humphries, John Eric; Mader, Nicholas S. - Institute for the Study of Labor (IZA) - 2010
The General Educational Development (GED) credential is issued on the basis of an eight hour subject-based test. The … school credentials issued in that year. This chapter reviews the academic literature on the GED, which finds minimal value of … post-secondary credentials. Although the GED establishes cognitive equivalence on one measure of scholastic aptitude …