Initiating day care at three years of age: effects on attachment.

Using the Ainsworth-Wittig strange situation, 12 42-month-old children with approximately 6-months of day-care experience were compared with individually matched children who had not had group child-rearing experience; 8 members of each experience group were female, and 4 members were male. While the day-care children showed less distress than the home-care children in the latter parts of the laboratory situation, the 2 groups were not different with respect to most other behaviors, including those toward the mother. However, day-care experience appeared to have differential effects as a function of sex; large differences were often found between the scores of the male subgroups, whereas the differences between the female subgroups were usually small. The day-care males exhibited the most exploratory manipulation, and the home-care males showed the most approach and proximity seeking toward the mother and the strongest approach toward and avoidance of the stranger. These results did not support the idea that day-care experience impair attachment to the mother.