Berger, R. M., Guilford, J. P., and Christensen, P. R. "A Factor-Analytic Study of Planning." Psychological Monographs, LXXI ( 1957), No. 435.
2.
Cattell, R. B. and Tiner, L. G. "The Varieties of Structural Rigidity." Journal of Personality, XVII (1949 ), 321-341.
3.
Dingman, H. F. "A Factor Analysis of Some Tests of Disposition Rigidity." Unpublished Master's thesis, University of Southern California, 1952.
4.
Frick, J. W. and Guilford, J. P. "An Analysis of a Form of the Water Jar Test." American Journal of Psychology, LXX (1957), 427-431.
5.
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.
6.
Guilford, J. P. "The Structure of Intellect." Psychological Bulletin, LIII (1956), 267-293.
7.
Guilford, J. P. "A Revised Structure of Intellect ." Reports from the Psychological Laboratory, No. 19. Los Angeles: University of Southern California, 1957.
8.
Guilford, J. P. and Christensen, P. R. "A Factor-Analytic Study of Verbal Fluency." Reports from the Psychological Laboratory, No. 17. Los Angeles: University of Southern California , 1956.
9.
Guilford, J. P., Frick, J. W., Christensen, P. R., and Merrifield, P. R. "A Factor-Analytic Study of Flexibility in Thinking." Reports from the Psychological Laboratory, No. 18. Los Angeles: University of Southern California, 1957.
10.
Guilford, J. P., Green, R. F., Christensen, P. R., Hertzka, A. F., and Kettner, N. W. "A Factor-Analytic Study of the Navy Reasoning Tests with the Air Force Aircrew Classification Battery ." EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT, XIV ( 1954) , 301-325.
11.
Guilford, J. P., Kettner, N. W., and Christensen, P. R. "A Factor-Analytic Study Across the Domains of Reasoning, Creative Thinking, and Evaluation." Reports from the Psychological Laboratory, Nos. 11, 16. Los Angeles: University of Southern California, 1954.
12.
Guilford, J. P., Kettner, N. W., and Christensen, P. R. "The Relation of Certain Thinking Factors to Training Criteria in the U. S. Coast Guard Academy." Reports from the Psylogical Laboratory, No. 13. Los Angeles: University of Southern California, 1955.
13.
Guilford, J. P. and Lacey, J. I. (Editors) Printed Classification Tests. Army Air Forces Aviation Psychology Research Program, Report No. 5. Washington, D.C.: U. S. Government Printing Office, 1947.
14.
Hertzka, A. F., Guilford, J. P., Berger, R. M., and Christensen, P. R. "A Factor-Analytic Study or Evaluative Abilities." EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT, XIV (1954), 581-597.
15.
Kettner, N. W., Guilford, J. P., and Christensen, P. R. "A Factor-Analytic Investigation of the Factor Called General Reasoning." EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT , XVI (1956), 438-453.
16.
Leavitt, E. E. "The Water-Jar Einstellung Test as a Measure of Rigidity." Psychological Bulletin, LIII (1956), 347-370.
17.
Luchins, A. S. "Mechanization in Problem Solving." Psychological Monographs, LIV (1942), No. 248.
18.
Oliver, J. A. and Ferguson, G. A. "A Factorial Study of Tests of Rigidity ." Canadian Journal of Psychology, V (1951), 49-59.
19.
Rokeach, M. "Generalized Mental Rigidity as a Factor in Ethnocentrism." Journal of Abnormal and Social Psychology, XLIII (1958), 259-278.
20.
Scheier, I. H. and Ferguson, G. A. "Further Factorial Studies of Tests of Rigidity." Canadian Journal of Psychology, VI (1952), 18-30.
21.
Taylor, D. W. and McNemar, Olga. "Problem Solving and Thinking."Annual Review of Psychology , Volume 6. Palo Alto: Stanford University Press, 1955.
22.
Thurstone, L. L. "A Factorial Study of Perception." Psychometric Monographs, No.4. Chicago: University of Chicago Press, 1944.
23.
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.
24.
Zimmerman, W. S. "A Simple Graphical Method for Orthogonal Rotation of Axes." Psychometrika , XI (1946), 51-55.