Empirical Verification of the Radex Structure of Mental Abilities and Personality Traits1

Gabriel, Reuben K. "The Simplex Structure of the Progressive Matrices Test." British Journal of Statistical Psychology, VII (1954), 9-14.

Guilford, J. P. "Dimensions of Intellect." International Colloquium on Factor Analysis, Paris , 1955 (to be published).

Guttman, Louis. Two New Approaches to Factor Analysis. Technical Report on Project Nonr-73I (∞), Office of Naval Research, Washington, D. C., submitted jointly by International Public Opinion Research, Inc., and the Israel Institute of Applied Social Research, June, 1953 (stencilled).

Guttman, Louis. "A New Approach to Factor Analysis: The Radex." In Lazarsfeld, P. F. Mathematical Thinking in the Social Sciences. Glencoe, Illinois: Free Press, 1954.

Guttman, Louis. "An Outline of Some New Methodology for Social Research." Public Opinion Quarterly, XVIII (954-55), 395-404.

Guttman, Louis. "A Generalized Simplex for Factor Analysis." Psychometrika, XX (1955), 173-192.

Guttman, Louis. "The Radex Approach to Factor Analysis." International Colloquium on Factor Analysis, Paris, 1955 (to be published).

Guttman, Louis. "What Lies Ahead for Factor Analysis?" (to be published).