1. Cattell, R. B., Eber, H. W., and Tatsuoka, M. M. (1970) Handbook for the Sixteen
2. Personality Factor Questionnaire. Champaign, IPAT.
3. Comrey, A. L. (1973) A first course in factor analysis. New York, Academic Press.
4. Cooper, C. (1982) An experimental investigation of Freudian defences. Unpublished Ph.D. thesis, Department of Psychology, University of Exeter.
5. Cooper, C. (1988) Predicting susceptibility to short-term stress with the Defence Mechanism Test. Work and Stress, 2, 49–58.