Students held back from kindergarten for a year may score better in the first few months of school, but they lose almost all that advantage by the eighth grade, according to a new study. "If it were true that older kids are able to learn at a faster rate, then the differences in test scores should get bigger as kids progress and the material gets more difficult. But we really see the opposite," said co-author Darren Lubotsky, a University of Illinois economics professor. "Older kids do better at first and younger kids do worse, but they catch up."
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