6. Plomin, R. (1987a). Developmental behavioral genetics and infancy. In J. Osofsky (Ed.), Handbook of infant development (2nd ed., pp. 363-417). New York: Wiley-Interscience.

The research reviewed in this chapter serves to provide an inkling of the heuristic value of developmental behavioral genetics for understanding individual differences in infancy. Because the amount of developmental behavioral genetic research in infancy is minuscule most of this potential is as yet unrealized. Nonetheless, some exciting conclusions - or at least hypotheses for future research - are beginning to emerge.