Green, R. F., Guilford, J. P., Christensen, P. R. and Comrey, A. L. "A Factor-Analytic Study of Reasoning Abilities." Psychometrika, XVIII (1953), 135-160.
2.
Guilford, J. P. and Holley, J. W. "A Factorial Approach to the Analysis of Variances in Esthetic Judgments." Journal of Experimental Psychology , XXXIX (1949), 208-218.
3.
Wilson, R. C., Guilford, J. P., Christensen, P. R. and Lewis, D. J. "A Factor-Analytic Study of Creative-Thinking Abilities." Psychometrika, XIX (1954), 297-311.
