Acknowledgments
Id like to extend my sincerest gratitude to all those who helped make this book a wonderful reality. Many thanks to Dr. David A. Hay for penning the books foreword and offering valuable feedback. Thanks to my editors, past and present, Michele Matrisciani and Deborah Brody. To my agent, Betsy Amster, I couldnt have done it without you. A special nod to my husband, Kevin, for taking on extra family responsibilities during the length of this project. And thanks to all those parents who so graciously gave their time to fill out questionnaires or spoke with me directly including Cheryl Feldman, Jan Meyers, Chris, Sandy Davis, Adrianne Austin, Mary E., Gretchen S. Pretty, Pam Heestand, Alicia Gutierrez, Julie Dupr Gilman, Susan and John Leahy, Renee Hald, Oma Jane Woods, Steve and Betty Bullington, Amy Mahaffey, Jeannette, Jim, Rick, Nancy Johnson and family, Mary W. Pasciuto, Jennifer Reed, Lucia Shugart, Linda M. Yaffee, Donna May Lyons, the Boretz family, Sue Bernier, Martha Slater, Ann Owens, Julie Seely, Kimberley Farrar, Laurie Moore, Christine Kumler, Donna Fredericks, Linda Gliner, MyrtleBeth, Julie McCarron, Amber Radunz, Heidi Snyder, Juliann Lipski, Christy Helvajian, Sheila Kroll, Sabrina Sanchez, Robin Bortoli, the Hicks family of Prattsville, and to those who wished to remain anonymous.
Bibliography
Many of the journals listed below can be found at university research libraries or accessed for a small fee through online services such as Ingenta Connect ( ingentaconnect.com ). Although some of the books listed below are no longer in print, they too can be found in university libraries or bought online through used booksellers such as Book Finder ( bookfinder.com ).
kerman, Britta Alin, and Eve Suurvee. The Cognitive and Identity Development of Twins at Sixteen Years of Age: A Follow-up Study of Thirty-Two Twin Pairs. Twin Research 6 (2003): 328333.
Bacon, Kate. Its Good to Be Different: Parent and Child Negotiations of Twin Identity. Twin Research and Human Genetics 9 (2006): 141147.
Bakker, Peter. Autonomous Language of Twins. Acta Geneticae Medicae et Gemellologiae 36 (1987): 233238.
Bank, Stephen, and Michael Kahn. The Sibling Bond. New York: Basic Books, 1997.
Bernabei, Paola, and Gabriel Levi. Psychopathological Problems in Twins During Childhood. Acta Geneticae Medicae et Gemellologiae 25 (1976): 381383.
Bouchard, Thomas, et al. Sources of Human Psychological Differences: The Minnesota Study of Twins Reared Apart. Science 250, no. 4978 (1990): 223229.
Claridge, Gordon, et al. Personality Differences and Biological Variations: A Study of Twins. Oxford: Pergamon Press, 1973.
Danby, Susan, and Karen Thorpe. Compatibility and Conflict: Negotiation of Relationships by Dizygotic Same-Sex Twin Girls. Twin Research and Human Genetics 9 (2006): 103112.
DiLalla, Lisabeth Fisher. Social Development of Twins. Twin Research and Human Genetics 9 (2006): 95102.
DiLalla, Lisabeth Fisher, and Rebecca Caraway. Behavioral Inhibition as a Function of Relationship in Preschool Twins and Siblings. Twin Research 7 (2004): 449455.
Ebeling, Hanna, et al. Inter-Twin Relationships and Mental Health. Twin Research 6 (2003): 334343.
El-Hai, Jack. Uniquely Twins. Minnesota Medicine 82 (1999).
Faber, Adele, and Elaine Mazlish. Siblings Without Rivalry: How to Help Your Children Live Together So You Can Live Too. New York: Quill, 2002.
Gleeson, C., et al. Twins in School: An Australia-Wide Program. Acta Geneticae Medicae et Gemellologiae 39 (1990): 231244.
Hay, David. ADHD and Multiples: A Family Affair. Twins 21, no. 5 (2004): 2831.
Hay, David. Twins in School: La Trobe Twins Study. Department of Psychology, La Trobe University, Melbourne, Australia, and Australian Multiple Birth Association Inc. (1991).
Hay, David, et al. Speech and Language Development in Preschool
Twins. Acta Geneticae Medicae et Gemellologiae 36 (1987): 213223.
Hay, David, et al. The High Incidence of Reading Disability in Twin Boys and Its Implications for Genetic Analyses. Acta Geneticae Medicae et Gemellologiae 33 (1984): 223236.
Hay, David, and P. J. OBrien. Early Influences on the School Social Adjustment of Twins. Acta Geneticae Medicae et Gemellologiae 36 (1987): 239248.
Hay, David, and P. J. OBrien. The Role of Parental Attitudes in the Development of Temperament in Twins at Home, School and in Test Situations. Acta Geneticae Medicae et Gemellologiae 33 (1984): 191204.
Johnson, Wendy, et al. The Personality of Twins: Just Ordinary Folks. Twin Research 5 (2002): 125131.
Koch, Helen. Twins and Twin Relations. Chicago: University of Chicago Press, 1966.
Koeppen-Schomerus, Gesina, et al. Twins and Non-Twin Siblings: Different Estimates of Shared Environment Influence in Early Childhood. Twin Research 6 (2003): 97105.
Lennarstson, AmyJo. Minnesota Twins Win. Twins 22, no. 4 (2005): 1820.
Loehlin, John C. Heredity, Environment and Personality: A Study of 850 Sets of Twins. Austin: University of Texas Press, 1976.
Lytton, Hugh. Parent-Child Interaction: The Socialisation Process Observed in Twins and Singleton Families. New York: Plenum Press, 1980.
McClearn, Gerald, et al. Substantial Genetic Influence on Cognitive Abilities in Twins Eighty or More Years Old. Science 276 (1997): 15601563.
McDougall, Megan, et al. Having a Co-Twin with Attention-Deficit Hyperactivity Disorder. Twin Research and Human Genetics 9 (2006): 148154.
Mittler, Peter. The Study of Twins. Middlesex: Penguin Books, 1971.
Moilanen, Irma. Dominance and Submissiveness Between Twins. Acta Geneticae Medicae et Gemellologiae 36 (1987): 249255.
Moilanen, Irma, and P. Rantakallio. Living Habits and Personality Development of Adolescent Twins: A Longitudinal Follow-Up Study in a Birth Cohort from Pregnancy to Adolescence. Acta Geneticae Medicae et Gemellologiae 39 (1990): 215220.
Pearlman, Eileen M., and Jill Alison Ganon. Raising Twins: What Parents Want to Know (and What Twins Want to Tell Them). New York: Collins, 2000.
Piontelli, Alessandra. Twins: From Fetus to Child. London: Routledge, 2002.
Posthuma, Danille, et al. Twin-Singleton Differences in Intelligence? Twin Research 3 (2000): 8387.
Pulkkinen, Lea, et al. Peer Reports of Adaptive Behavior in Twins and Singletons: Is Twinship a Risk or an Advantage? Twin Research 6 (2003): 106118.
Rosambeau, Mary. How Twins Grow Up. London: The Bodley Head, 1987.
Sandbank, Audrey. The Effects of Twins on Family Relationships. Acta Geneticae Medicae et Gemellologiae 37 (1988): 161171.
Sandbank, Audrey. Twins and the Family. London: Arrow Books, 1988.
Sandbank, Audrey (editor). Twins and Triplet Psychology: A Professional Guide to Working with Multiples. London: Routledge, 1999.
Scheinfeld, Amram. Twins and Supertwins. Philadelphia: J. B. Lippincott Company, 1967.
Segal, Nancy, and Scott Hershberger. Cooperation and Competition Between Twins: Findings from a Prisoners Dilemma Game. Evolution and Human Behavior 20 (1999): 2951.
Sheehan, Grania. Adolescent Sibling Conflict: The Role of Parental Favouritism. Family Matters 46 (1997): 3739.
Sheehan, Grania, and Patricia Noller. Adolescents Perceptions of Differential Parenting: Links with Attachment Style and Adolescent Adjustment. Personal Relationships 9 (2002): 173190.
Smilansky, Sara. Twins and Their Development: The Roles of Family and School