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Linking Implementation Fidelity to Impacts in an RCT

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Unlu, Fatih; Bozzi, Laurie; Layzer, Carolyn; Smith, Arthur; Price, Cristofer; Hurtig, Richard – Society for Research on Educational Effectiveness, 2013

In experimental studies, researchers are often interested in secondary research questions that explore important aspects of main findings, such as whether or not program effects vary according to the level of fidelity in which the program has been implemented; or according to the dosage received by individuals participated in the program. In this…

Descriptors: Fidelity, Program Implementation, Randomized Controlled Trials, Research Problems

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