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Download full textUnlu, 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
Direct linkDing, Weili; Lehrer, Steven F. – National Bureau of Economic Research, 2009
This paper introduces an empirical strategy to estimate dynamic treatment effects in randomized trials that provide treatment in multiple stages and in which various noncompliance problems arise such as attrition and selective transitions between treatment and control groups. Our approach is applied to the highly influential four year randomized…
Descriptors: Control Groups, Class Size, Small Classes, Grade 1
