CattellR. B.SaundersD. R., & SticeG.Handbook for the Sixteen Personality Factor Questionnaire. Champaign, Ill.: Institute for Personality and Ability Testing, 1957.
GoodenoughD. R., & KarpS. A.Field dependence and intellectual functioning. J. abnorm. soc. Psychol., 1961, 63, 241–246.
4.
RitzG. H.Jr.The relative strength of impulse, ego and superego in three groups of aged males. Unpublished doctoral dissertation, Western Reserve Univer., 1954.