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Bowles, Tyler J.; McCoy, Adam C.; Bates, Scott – College Student Journal, 2008
Supplemental Instruction (SI) is a national program designed to aid college student learning. Many researchers have noted that analysis of the impact of the SI program on student achievement is problematic as a result of the inherent self-selection bias. We apply a sufficiently sophisticated statistical technique that controls for the…
Descriptors: Supplementary Education, Academic Support Services, National Programs, Graduation