Brown, J.F. "A Modification of the Rosenzweig Picture-Frustration Test to Study Hostile Interracial Attitudes." Journal of Psychology, XXIV (1947), 247-272.
2.
Burgess, G.G. "Significance of the Difference between Biserial Correlation Coefficients." American Psychologist, IX (1954), 343. (Abstract).
3.
Cronbach, L.J. "Coefficient Alpha and the Internal Structure of Tests." Psychometrika, XVI (1951), 297-334.
4.
DuBois, P.H. , Loevinger, Jane, and Gleser, Goldine C. "The Construction of Homogeneous Keys for a Biographical Inventory." Human Resources Research Center, Research Bulletin, 52-18.
5.
Guttman, L. "The Basis of Scalogram Analysis." In S. A. Stouffer, et al.Measurement and Prediction: Studies in Social Psychology in World War II, 4. Princeton: Princeton University Press, 1950.
6.
Likert, R.A. "A Technique for the Measurement of Attitudes ." Archives of Psychology, (1932), No. 140.
7.
Rundquist, E.A. and Sletto, R.F.Personality in the Depression. Minneapolis: University of Minnesota Press, 1936.
8.
Stouffer, S.A. , Borgatta, E.F., Hays , D.C., and Henry, A.F. "A Technique for Improving Cumulative Scales ." Public Opinion Quarterly , XVI (1952), 273-291.