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Zhu, Pei; Jacob, Robin; Bloom, Howard; Xu, Zeyu – MDRC, 2011
This paper provides practical guidance for researchers who are designing and analyzing studies that randomize schools--which comprise three levels of clustering (students in classrooms in schools)--to measure intervention effects on student academic outcomes when information on the middle level (classrooms) is missing. This situation arises…
Descriptors: Intervention, Academic Achievement, Research Methodology, Research Design
Rutschow, Elizabeth Zachry; Schneider, Emily – MDRC, 2011
One of the greatest challenges that community colleges face in their efforts to increase graduation rates is improving the success of students in their developmental, or remedial, education programs--the courses that students without adequate academic preparation must take before they can enroll in courses for college credit. Emphasizing results…
Descriptors: Journal Articles, Models, College Readiness, Evidence