Anastasi, Anne1968Psychological Testing. New York: Macmillan Company.
2.
Bloom, Benjamin S.1964Stability and Change in Human Characteristics. New York: John Wiley and Sons.
3.
Coleman, James S. et al. 1966Equality of Educational Opportunity. U.S. Department of Health, Education, and Welfare, Office of Education: Government Printing Office.
4.
Cooley, William AND Paul R. Lohnes1962Multivariate Procedures for the Behavioral Sciences. New York: John Wiley and Sons.
5.
Dave, Ravindrakumar H.1963The Identification and Measurement of Environmental Process Variables that are Related to Educational Achievement. Unpublished Ph.D. thesis, University of Chicago.
6.
Fraser, Elizabeth1959Home Environment and the School. London: University of London Press.
7.
Garrett, Henry E.1958Statistics in Psychology and Education. New York: David McKay Company, Inc.
8.
Nunnally, Jum C.1967Psychometric Theory. New York: McGraw Hill.
9.
Plowden, Bridgett, et al. 1967Children and their Primary Schools, A Report of the Central Advisory Council for Education (England)London: H.M.S.O.
10.
Vernon, Philip E.1969Intelligence and Cultural Environment. London: Methuen.
11.
Weiss, Joel1969The Identification and Measurement of Home Environmental Factors Related to Achievement Motivation and Self Esteem. Unpublished Ph.D. thesis, University of Chicago.
12.
Wolf, R.1964The Identification and Measurement of Environmental Process Variables Related to Intelligence. Unpublished Ph.D. thesis, University of Chicago.