Douglass, Harl L.The Relation of High School Preparation and Certain Other Factors to Academic Success at the University of Oregon. Eugene : University of Oregon Press, 1931 .
2.
Durflinger, Glenn W. "The Prediction of College Success—A Summary of Recent Findings." Journal of the American Association of Collegiate Registrars, XIX ( 1943), 68-78.
3.
Kinney, L.B.A Summary of the Literature on the Use of Intelligence Tests in Colleger and Universities. (University of Minnesota Committee on Educational Research.) Minneapolis: University of Minnesota, 1932.
4.
Reed, W.P. and Portenier, L.G.Unpublished data adapted for Wyoming from a table originally published by Herbert Toops, Ohio State University.
5.
Segel, David.Prediction of Success in College, Bulletin No. 15. Washington : U. S. Office of Education, 1934 .
6.
Toops, H.A.Ohio College Association, Bulletin No. 124. Columbus : Ohio State University, 1940 (mimeographed copy). p. 2410.
7.
Wagner, MazieE. Prediction of CollegePerformance. Buffalo: University of Buffalo, 1934, p. 59.
8.
Wolfle, Dael. "The First Course in Psychology." Psychological Bulletin, XXXIX ( 1942), 689.