Ainslie, Ricardo C., Olmstead, Kelly M., and O'Loughlin, Daniel D.. 1987. The early developmental context of twinship: Some limitations of the equal environments hypothesis. American Journal of Orthopsychiatry 57 (1): 120–4.
Alford, John R., Funk, Carolyn L., and Hibbing, John R.. 2005. Are political orientations genetically transmitted? American Political Science Review 99 (2): 153–68.
Alford, John R., Funk, Carolyn L., and Hibbing, John R.. 2008. Beyond liberals and conservatives to political genotypes and phenotypes. Perspectives on Politics 6 (2): 321–28.
Beckwith, Jon. 2006. Wither human behavioral genetics? In Wrestling with Behavioral Genetics: Science, Ethics, and Public Conversation, ed. Parens, E., Chapman, A., and Press, N.. Baltimore: Johns Hopkins University Press.
Beckwith, Jon, Geller, Lisa, and Sarkar, Sahotra. 1991. “IQ and Heredity.” [Letter to the Editor] Science 252 (5003): 191.
Bouchard, Thomas J. Jr., Lykken, David T., McGue, Matthew, Segal, Nancy L., and Tellegen, Auke. 1990. Sources of human psychological differences: The Minnesota Study of Twins Reared Apart. Science 250 (4978): 223–8.
Cronk, Nikole J., Slutske, Wendy S., Madden, Pamela A.F., Bucholz, Kathleen K., Reich, Wendy, and Heath, Andrew. 2002. Emotional and behavioral problems among female twins: An evaluation of the equal environments assumption. Journal of the American Academy of Child and Adolescent Psychology 41 (7): 829–37.
Ehrlich, Paul, and Feldman, Marcus W.. 2007. . Dædalus Spring: 5–12.
Eriksson, Marit, Rasmussen, Finn, and Tynelius, Per. 2006. Genetic factors in physical activity and the equal environment assumption—the Swedish Young Male Twin Study. Behavior Genetics 36 (2): 238–47.
Flynn, James R. 2007 What Is Intelligence? Cambridge: Cambridge University Press.
Horwitz, Allan V., Videon, Tami M., Schmitz, Mark F., and Davis, Diane. 2003a. Rethinking twins and environments: Possible sources for assumed genetic influences in twin research. Journal of Health and Social Behavior 44 (2): 111–29.
Horwitz, Allan V., Videon, Tami M., Schmitz, Mark F., and Davis, Diane. 2003b. Double vision: Reply to Freese and Powell. Journal of Health and Social Behavior 44 (2): 136–41.
Joseph, Jay. 1998. The equal environment assumption of the classical twin method: A critical analysis. Journal of Mind and Behavior 19 (3): 325–58.
Joseph, Jay. 2004. The Gene Illusion. New York: Algora Publishing.
Kamin, Leon J., and Goldberger, Arthur S.. 2002. Twin studies in behavioral research: A skeptical view. Theoretical Population Biology 61 (1): 83–95.
Kendler, Kenneth S., Neale, Michael C., Kessler, Ronald C., Heath, Andrew C., and Eaves, Lindon J.. 1993. A test of the equal-environment assumption in twin studies of psychiatric illness. Behavior Genetics 23 (1): 21–7.
Morris, Corey, Shen, Aimee, Pierce, Khadija, and Beckwith, Jon. 2007. Deconstructing violence. GeneWatch 20 (2): 3–9.
Morris-Yates, Allen, Andrews, Gavin, Howie, P., and Henderson, S.. 1990. Twins: A test of the equal environments assumption. Acta Psychiatrica Scandinavica 81 (4): 322–6.
Pam, Alvin, Kemker, Susan S., Ross, Colin A., and Golden, R.. 1996. The “equal environments assumption” in MZ-DZ twin comparisons: An untenable premise of psychiatric genetics? Acta geneticae medicae et gemellologiae 45 (3): 349–60.
Plomin, Robert, Willerman, Lee, and Loehlin, John C.. 1976. Resemblance in appearance and the equal environments assumption in twin studies of personality traits. Behavior Genetics 6 (1): 43–52.
Prescott, Carol A., Johnson, Ronald C., and McArdle, John J.. 1999. Chorion type as a possible influence on the results and interpretation of twin study data. Twin Research 2 (4): 244–9.
Richardson, Ken. 1998. The Origins of Human Potential. London: Routledge.
Rutter, Michael. 2002. Nature, nurture, and development: From evangelism through science towards policy and practice. Child Development 73 (1): 1–21.
Sampson, Robert J., Sharkey, Patrick, and Raudenbush, Stephen W.. 2008. Durable effects of concentrated disadvantage on verbal ability among African-American children. Proceedings of the National Academies of Sciences 105 (3): 845–52.
Scarr, Sandra, and Carter-Saltzman, Louise. 1979. Twin method: Defense of a critical assumption. Behavior Genetics 9 (6): 527–42.
Schaffner, Kenneth F. 2006. Behavior: Its nature and nurture. In Wrestling with Behavioral Genetics: Science, Ethics, and Public Conversation, ed. Parens, E., Chapman, A., and Press, N.. Baltimore: Johns Hopkins University Press.
Sober, Elliott. 2001. Separating nature and nurture. In Genetics and Criminal Behavior, ed. Wasserman, D.T. and Wachbroit, R.S.. Cambridge: Cambridge University Press.
Turkheimer, Eric. 2006. Mobiles: A gloomy view of research into complex human traits. In Wrestling with Behavioral Genetics: Science, Ethics, and Public Conversation, ed. Parens, E., Chapman, A., and Press, N.. Baltimore: Johns Hopkins University Press.
Turkheimer, Eric, Haley, Andreana, Waldron, Mary, D'Onofrio, Brian, and Gottesman, Irving I.. 2003. Socioeconomic status modifies heritability of IQ in young children. Psychological Science 14 (6): 623–8.
Xian, Hong, Scherrer, Jeffrey F., Eisen, Seth A., True, William R., Heath, Andrew C., Goldberg, Jack, Lyons, Michael J., and Tsuang, Ming T.. 2000. Self-reported zygosity and the equal-environments assumption for psychiatric disorders in the Vietnam Era Twin Registry. Behavior Genetics 30 (4): 303–10.