Christensen, C. M. "A Note on 'Dogmatism and Learning'." Journal of Abnormal and Social Psychology, LXVI (1963), 75-76.
2.
Cronbach, L. J. and Meehl, P. E. "Construct Validity in Psychological Tests." In Feigl, H. and Scriven, M. (Eds.) Minnesota Studies in the Philosophy of Science: Volume I. Minneapolis : University of Minnesota Press, 1956. Pp. 174-204.
3.
Ehrlich, H. T. "Dogmatism and Learning." Journal of Abnormal and Social Psychology, LXII (1961), 148-149.
4.
Osgood, C. E., Suci, G. J. , and Tannenbaum, P. H.The Measurement of Meaning. Urbana: University of Illinois Press, 1957.
5.
Peabody, D. "Two Components in Bipolar Scales: Direction and Extremeness." Psychological Review, LXIX (1962), 65-73.
6.
Rokeach, M.The Open and Closed Mind. New York: Basic Books, 1960.