Bennett, G. K., Seashore, H. G., and Wesman, A. G.Manual for the Differential Aptitude Tests. (4th ed.) New York: Psychological Corporation , 1966.
2.
Cooperative Test Division. Cooperative Achievement Test, Test II: Natural Sciences, Form XX. Educational Testing Service, Princeton, N. J.Educational Testing Service, 1954.
3.
Cooperative Test Division. Cooperative English Tests, Form 1C. Princeton, N. J.: Educational Testing Service , 1960.
4.
Johnson, R. W., Keochakian, S., Morningstar, Mona, and Southworth, J. A.Validation of Freshman Orientation Test Battery. Amherst, Massachusetts: University of Massachusetts Counseling Center, 1967.
5.
University of Massachusetts. Proficiency Examination in Mathematics, Form E. Amherst, Massachusetts: Author , 1964.