Gaps in early learning are starkly apparent among differing children even before they enter kindergarten. So, a rising number of states are trying to narrow initial achievement disparities by expanding access to quality preschool. At the same time, recent findings show that preschool is not a lasting inoculation: its benefits fade if children move…

California continues to widen access to local child care and preschool programs--albeit in fits and starts--for a variety of families. About 65% of all four year-olds statewide now attend a preschool center. Government spends $3.6 billion on early care and education programs statewide, including a three-fold increase in state spending since 1996.…

The new call for a universal preschool system is prompting an important policy debate across California. How preschooling is expanded and improved with limited public resources depends on several key issues. The hopeful ideals of "preschool for all"--with children beginning school ready to learn--spark enthusiasm and broaden public will.…

Parents and policymakers are turning to preschools to better advance the school readiness and broader development of young children. Much remains unknown, including how preschool programs of varying quality affect diverse groups of children. This is particularly important as several California counties embark on ambitious and costly efforts to…