Block, J. B. (1968). Hereditary components in the performance of twins on the WAIS. In Vandenberg, S. G. (ed.),Progress in Human Behavior Genetics, Hopkins Press, Baltimore, MD, pp. 221–228.

Bouchard, T. J., Segal, N. L., and Lykken D. T. (1990). Genetic and environmental influences on special mental abilities in a sample of twins reared apart.Acta Genet. Med. Gemellol. 39:193–206.

Cyphers, L. H., Fulker, D. W., Plomin, R., and Defries, J. C. (1989). Cognitive abilities in the early school years: No effects of shared environment between parent and offspring.Intelligence 13:369–386.

DeFries, J. C., Plomin, R., Vandenberg, S. G., and Kuse, A. R. (1981). Parent-offspring resemblance for cognitive abilities in the Colorado Adoption Project: Biological, adoptive, and control parents and one-year-old children.Intelligence 5:245–277.

Detterman, D. K. (1988). CAT: Computerized abilities test for research and teaching.MicroPsych Network 4:51–62.

Finkel, D., McGue, M., and Fox, P. (1991, June). A twin study of memory performance across the lifespan. Paper presented at the annual meeting of the Behavior Genetic Association, St. Louis, MO.

Foch, T. T., and Plomin, R. (1980). Specific cognitive abilities in 5- to 12-year-old twins.Behav. Genet. 10:153–162.

Garfinkle, A. S. (1982). Genetic and environmental influences on the development of Piagetian Logico-matematical concepts and other specific cognitive abilities.Acta Genet. Med. Gemellol. 31:10–61.

Garfinkle, A. S., and Vandenberg, S. G. (1981). Development of Piagetian logicmathematical concepts and other specific cognitive abilities. In Gedda, L., Parisi, P., and Nance, W. E. (eds.),Twin Research 3: Intelligence, Personality, and Development, Liss, New York, pp. 51–60.

Halprin, S. L., Rao, D. C., and Morton, N. E. (1975). A twin study of intelligence in Russian.Behav. Genet.,5:83–86.

Joreskog, K. C., and Sorbom, D. (1989).Lisrel VII: Analysis of Linear Structural Relationships, National Educational Resources, Chicago.

Mittler, P. (1969). Genetic aspects of psycholinguistic abilities.J. Child Psychol. Psychiat. 10:165–176.

Nichols, R. C., and Bilbro, W. C. (1966). The diagnosis of twin zygosity.Acta Genet. 16:265–275.

Partanen, J., Brunn, K., and Markkanen, T. (1966).Inheritance of Drinking Behavior, Almqvist & Wiksell, Stockholm.

Pedersen, N. L., McClearn, G. E., Plomin, R., and Friberg, L. (1985). Separated fraternal twins: Resemblance for cognitive abilities.Behav. Genet.,15:407–419.

Pedersen, N. L., Plomin, R., Nesselroade, J. R., and McClearn, G. F. (1992). A quantitative genetic analysis of the cognitive abilities during the second half of the life span.Psychol. Sci. 3(6):346–353.

Plomin, R. (1986).Development, Genetics, and Psychology, Lawrence Erlbaum Associates, Hillsdale, NJ.

Schbenfeldt, L. F. (1968). The heredity components of project TALENT two-day test battery.Meas. Eval. Guid. 1:130–140.

Squire, L. R. (1992). Memory and the hippocampus: A synthesis from findings with rats, monkeys, and humans.Psychol. Rev. 99(2):195–231.

Tambs, K., Sundent, J. M., and Magnus, P. (1984) Heritability analysis of the WAIS subtests. A study of twins.Intelligence 9:1–13.

Thompson, L. A., Detterman, D. K., and Plomin, R. (1991). Associations between cognitive abilities and scholastic achievement: Genetic overlap but environmental differences.Psychol. Sci. 2:158–165.

Tulving, E., and Schacter, D. L. (1990). Priming and human memory systems.Science 247:301–306.

Vandenberg, S. G. (1962). The hereditary abilities study: Hereditary components in a psychological test battery.Am. J. Hum. Genet. 14:220–237.

Wechsler, D. (1974).Manual for the Wechsler Intelligence Scale for Children-Revised, Psychological Corp., New York.