Baker, H.J. & Leland, B.Detroit tests of learning aptitude. Bloomington , III.: Public School Publishing, 1939; 1959.
2.
Cooley, W.W. & Lohnes, P.R.Multivariate procedures for the behavioral sciences. New York: Wiley, 1962.
3.
Dupont, H.Educating emotionally disturbed children, Readings. New York: Holt, Rinehart and Winston , 1969.
4.
Fisher, R.A.Statistical methods for research workers. (Rev. ed.) New York: Hafner, 1958. Johnson, G.C.Special education for the mentally handicapped-a paradox. Exceptional Children. 1962, 29(2), 62-69.
5.
Quay, H.C.Some basic considerations in the education of emotionally disturbed children . Exceptional Children, 1963, 30(1), 27-31.
6.
McHugh, R.B. & Apostolakos, P.C.Methodology for the comparison of clinical with actuarial predictions. Psychological Bulletin, 1959, 56(4) 301-8.
7.
Rao, C.R.Advanced Statistical Methods in Biometric Research. New York: Wiley, 1952.
8.
Spivack, G.Levine, M. & Sprigle, H.Intelligence test performance and the delay function of the ego. Journal of Consulting Psychology, 1959, 23(5), 428-31.