Here are some relevant references from the book:

When investigators actually go and look, rather than just declare that we are products of childhood, the lack of strong continuity from childhood to adulthood is what hits you between the eyes. This is a major discovery of life-span developmental psychology. “Change” is at least as good a description as “continuity” for what happens to us as we mature. For good reviews of this very large literature, see M. Rutter, “Continuities and Discontinuities from Infancy,” in J. Osofsky, ed., Handbook of Infant Development, 2d ed. (New York: Wiley, 1987), 1256–98; H. Moss and E. Sussman, “Longitudinal Study of Personality Development,” in O. Brim and J. Kagan, eds., Constancy and Change in Human Development (Cambridge, Mass.: Harvard University Press, 1980), 530–95; G. Parker, E. Barrett, and I. Hickie, “From Nurture to Network: Examining Links Between Perceptions of Parenting Received in Childhood and Social Bonds in Adulthood,” American Journal of Psychiatry 149 (1992): 877–85; and R. Plomin, H. Chipuer, and J. Loehlin, “Behavior Genetics and Personality,” in L. Pervin, ed., Handbook of Personality Theory and Research (New York: Guilford, 1990), 225–43.

or

Especially instructive is the finding that divorce itself is heritable. If you have an identical twin who divorces, your chances of divorce increase sixfold, whereas a divorced fraternal twin only increases your chances of divorce twofold. See M. McGue and D. Lykken, “Genetic Influence on the Risk of Divorce,” Psychological Science 3 (1992): 368–73.

or

See D. Finkelhor, “Early and Long-term Effects of Child Sexual Abuse,” for a recent review. Three longitudinal studies are R. Gomes-Schwartz, J. Horowitz, and A. Cardarelli, Child Sexual Abuse: The Initial Effects (Newbury Park, Calif.: Sage, 1990); A. Bentovim, P. Boston, and A. Van Elburg, “Child Sexual Abuse—Children and Families Referred to a Treatment Project and the Effects of Intervention,”. British Medical Journal 295 (1987): 1453–57; J. Conte, “The Effects of Sexual Abuse on Children: Results of a Research Project,” Annals of the New York Academy of Sciences 528 (1988): 310–26. For the better prognosis in children than in adults, see R. Hanson, “The Psychological Impact of Sexual Assault on Women and Children: A Review,” Annals of Sex Research 3 (1990): 187–232. For ripping off the scars and even manufacturing them out of whole cloth, see D. Kent, “Remembering ‘Repressed’ Abuse,” APS Observer 5 (1992): 6–7. For the effect of lengthy litigation, see D. Runyan, M. Everson, D. Edelsohn, et al., “Impact of Legal Intervention on Sexually Abused Children,” Journal of Pediatrics 113 (1988): 647–53.