McCutcheon B, Calhoun K S
Am J Orthopsychiatry. 1976 Jan;46(1):104-8. doi: 10.1111/j.1939-0025.1976.tb01231.x.
Infants five to thirty months old were observed for one week on entering a day care program, and again at the end of one month. Frequency of behaviors reflecting social and emotional adjustment were recorded. There was significant decreases in frequency of crying, sitting alone, and interacting with adults, while interactions with other children increased significantly. Results indicate that children of this age can adjust well, and quite rapidly, to a day care setting.
对5至30个月大的婴儿进入日托项目时进行了为期一周的观察，并在一个月末再次进行观察。记录了反映社交和情绪适应的行为频率。哭泣、独自坐着以及与成年人互动的频率显著下降，而与其他儿童的互动则显著增加。结果表明，这个年龄段的儿童能够很好且相当迅速地适应日托环境。
