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Direct linkGambrell, James Lamar – ProQuest LLC, 2013
Although much educational research has investigated the relative effectiveness of different educational interventions and policies, little is known about the absolute net benefits of K-12 schooling independent of growth due to chronological age and out-of-school experience. The nearly universal policy of age tracking in schools makes this a…
Descriptors: Achievement Tests, Academic Ability, Quasiexperimental Design, Regression (Statistics)
