New York City Infant Day Care Study.

The article presents a study that compared the development of infants in group day care, family day care, and at-home settings in New York City. It describes a 5-year longitudinal study designed to obtain the kind of information needed to plan quality day care for infants by studying the newly developing programs and their impact on children and their families. It also provides data on the effect on children's development of separation from their mothers in day care situations during the infancy period. Included in the study are five hundred fifty children between 6 and 36 months of age and their families. Significant findings and analyses of the study are presented.