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Estimating Impacts of Treatment Random Assignment on Classroom Quality in the Head Start Impact Study: The Problem of Missing Data
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Friedman-Krauss, Allison H.; Connors, Maia C.; Morris, Pamela A. – Society for Research on Educational Effectiveness, 2013
As a result of the 1998 reauthorization of Head Start, the Department of Health and Human Services conducted a national evaluation of the Head Start program. The goal of Head Start is to improve the school readiness skills of low-income children in the United States. There is a substantial body of experimental and correlational research that has…
Descriptors: Early Intervention, Preschool Education, School Readiness, Low Income Groups
Making Causal Inferences from a Longitudinal Cluster Randomized Experiment with Crossovers: An Evaluation of a Distributed Leadership Program in Urban Schools
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Maynard, Rebecca; Dong, Nianbo – Society for Research on Educational Effectiveness, 2009
This study empirically investigates the effectiveness of Distributed Leadership Teacher Training (DLT) program on improving student's academic achievement. In addition, it both tests the assumption that the year 1 impacts are stable across calendar years and examines the importance of properly accounting for the fact that the standard error of the…
Descriptors: Urban Schools, Middle School Students, Elementary School Students, Sample Size