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John R. Slate, Pamela B. Anderson, George W. Moore. Differences in Mathematics and Science Achievement by Grade 5 and Grade 8 Student Economic Status: A Multiyear, Statewide Study. GJHSS [Internet]. 2017 Mar. 15 [cited 2024 May 7];17(H5):15-26. Available from: https://socialscienceresearch.org/index.php/GJHSS/article/view/2332