Cattell, R. B., Eber, H. W., and Tatsuoka, M. M.Handbook for the Sixteen Personality Factor Questionnaire. Champaign, Ill.: Institute for Personality and Ability Testing, 1970.
2.
Holland, J. L.The prediction of college grades from personality and aptitude variables. The Journal of Educational Psychology, 1960, 51, 245-54.
3.
Huckabee, M. W.Cognitive and personality correlates of performance in the general psychology course. Southern Journal of Educational Research, 1968, 2, 221-25.
4.
Ipat.IPAT Information Bulletin #4. Champaign, Ill.: Institute for Personality and Ability Testing, 1962.