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Rickles, Jordan H. – Evaluation Review, 2011
Many inquiries regarding the causal effects of policies or programs are based on research designs where the treatment assignment process is unknown, and thus valid inferences depend on tenuous assumptions about the assignment mechanism. This article draws attention to the importance of understanding the assignment mechanism in policy and program…
Descriptors: Assignments, Program Evaluation, Academic Achievement, Ability Grouping
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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
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Palen, Lori-Ann; Graham, John W.; Smith, Edward A.; Caldwell, Linda L.; Mathews, Catherine; Flisher, Alan J. – Evaluation Review, 2008
This article describes rates of missing item responses in personal digital assistant (PDA) assessments as compared to paper assessments. Data come from the evaluation of a classroom-based leisure, life skills, and sexuality education program delivered to high school students in Cape Town, South Africa. Analyses show that the paper assessments had…
Descriptors: Evaluation Research, Sex Education, Foreign Countries, Sexuality