Clark, D. M., Slate, J. R., Combs, J. P., & Moore, G. W. (2013). Math and Reading Differences Between 6-8 and K-8 Grade Span Configurations: A Multiyear, Statewide Analysis. Current Issues in Education, 16(2). Retrieved from https://cie.asu.edu/ojs/index.php/cieatasu/article/view/1144