1. Cattell, R. B. Personality and motivation structure and measurement. New York: World Book, 1957.
2. Cattell, R. B., & Eber, H. W. Sixteen personality factor questionnaire. Champaign, III: Institute for Personality and Ability Testing, 1962. (a)
3. Cattell, R. B., & Eber, H. W. Supplement of norms for Forms A and B of the Sixteen Personality Factor Questionnaire. Champaign, III: Institute for Personality and Ability Testing, 1962. (b)
4. Craig, M. J., Humphreys, M. S., Rocklin, T., & Revelle, W. Impulsivity, neuroticism, and caffeine: Do they have additive effects on arousal? Journal of Research in Personality, 1979, 13, 404–419.
5. Davis, J. K., & Frank, B. M. Learning and memory of field independent-dependent individuals. Journal of Research in Personality, 1979, 13, 469–479.