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Shin, Hye Sook – ProQuest LLC, 2009
Using data from a nationwide, large-scale experimental study of the effects of a connected classroom technology on student learning in algebra (Owens et al., 2004), this dissertation focuses on challenges that can arise in estimating treatment effects in educational field experiments when samples are highly heterogeneous in terms of various…
Descriptors: Control Groups, Community Characteristics, Municipalities, Pretests Posttests
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Brown, Eric C.; Graham, John W.; Hawkins, J. David; Arthur, Michael W.; Baldwin, Megan M.; Oesterle, Sabrina; Briney, John S.; Catalano, Richard F.; Abbott, Robert D. – Evaluation Review, 2009
Communities That Care (CTC) is a prevention system designed to reduce adolescent substance use and delinquency through the selection of effective preventive interventions tailored to a community's specific profile of risk and protection. A community-randomized trial of CTC, the Community Youth Development Study, is currently being conducted in 24…
Descriptors: Longitudinal Studies, Cohort Analysis, Community Characteristics, Prevention