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Ryken, Klazina – ProQuest LLC, 2012
The purpose of this study was to determine whether age differences affect students' academic achievement, and whether age differences affect students in low-income areas differently than those in mixed or higher-income areas. Student achievement data for grades 3, 7, and 11 in language arts and math were obtained from a variety of schools located…
Descriptors: Age Differences, Academic Achievement, Low Income Groups, Family Income