Developmental research in the last ten years has documented the importance of early mother-infant interaction for later child development (Brazelton, 1973; Thoman, 1975; Clarke-Stewart, 1973; Ainsworth Bell & Slayton, 1974). The quality of the early mother-infant interaction has been found to correlate with later social and cognitive development (Yarrow, Rubenstein, & Pederson, & Jankowski, 1972; Elardo, Bradley, & Caldwell, 1975).