A Multisite Cluster Randomized Trial of the Effects of CompassLearning Odyssey® Math on the Math Achievement of Selected Grade 4 Students in the Mid-Atlantic Region

A major goal of U.S. education policymakers during the past two decades has been to improve math achievement (Faulkner et al. 2008). Toward this end, policymakers have passed legislation, formulated policies, raised standards, and redesigned assessments (MacCaffrey et al. 2001; Business Coalition for Education Reform 1998). The No Child Left Behind Act of 2001 emphasizes the importance of mathematics, among other areas, by requiring that all U.S. students be proficient in math by 2014, as measur…