How much is too much?

by Susanna Loeb

"Previous research has demonstrated that attending center care is associated with cognitive benefits for young children. However, little is known about the ideal age for children to enter such care or the "right" amount of time, both weekly and yearly, for children to attend center programs. Using national data from the Early Childhood Longitudinal Study (ECLS-K), this paper asks whether there are optimal levels of center care duration and intensity and whether these levels vary by race or income. We consider pre-reading and math skills as measured by assessments administered at the...