„The largest impact per unit cost comes from moving low-income children from attending no preschool to attending some preschool.“
Dr. Elisabeth U. Cascio u. a., „Expanding Preschool Access for Disadvantaged Children“ (2014), S. 7
„The largest impact per unit cost comes from moving low-income children from attending no preschool to attending some preschool.“
Dr. Elisabeth U. Cascio u. a., „Expanding Preschool Access for Disadvantaged Children“ (2014), S. 7