The merits of a longer school day |
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Authors: | Charles R Link James G Mulligan |
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Abstract: | This paper presents results of an empirical study of the effects of increasing the amount of math and reading instruction offered to third through sixth grade students. The data come from a nationwide random sample for the 1976–1977 school year. While blacks and Hispanics received significantly greater hours of instruction than whites, all groups experienced diminishing returns at the observed amounts of instruction. In nearly all cases there appeared to be little benefit expected from a further increase in the amount of math and reading instruction offered per day. |
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