1. Ahern, F. M. (1980).A Family Study of Personality, Unpublished doctoral dissertation, University of Hawaii, Honolulu.
2. Comrey, A. L. (1970).Manual for the Comrey Personality Scales, Educational and Industrial Testing Service, San Diego.
3. DeFries, J. C., Vandenberg, S. G., McClearn, G. E., Kuse, A. R., Wilson, J. R., Ashton, G. C., and Johnson, R. C. (1974). Near identity of cognitive structure in two ethnic groups.Science 183:338?339.
4. DeFries, J. C., Ashton, G. C., Johnson, R. C., Kuse, A. R., McClearn, G. E., Mi, M. P., Rashad, M. N., Vandenberg, S. G., and Wilson, J. R. (1976). Parent-offspring resemblance for specific cognitive abilities in two ethnic groups.Nature 261:131?133.
5. DeFries, J. C., Johnson, R. C., Kuse, A. R., McClearn, G. E., Polovina, J., Vandenberg, S. G., and Wilson, J. R. (1979). Familial resemblances for specific cognitive abilities.Behav. Genet. 9:23?43.