Without offering exact dollar figures, Richard Clifford, another UNC researcher, said the best day care tended to cost twice as much as the worst. Good programs could be found in the public and private sectors, researchers said. Made children less likely to misbehave in later years, particularly if they were in centers where most children got along. Gave children better social and learning skills regardless of the quality of their kindergarten and second-grade classes. Made the most difference for children who were poor or whose mothers were less-educated than other children's mothers.
Republican leaders have similar proposals.
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