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Chatterji, Madhabi; Green, Lawrence W.; Kumanyika, Shiriki – Health Education & Behavior, 2014
This article summarizes a comprehensive, systems-oriented framework designed to improve the use of a wide variety of evidence sources to address population-wide obesity problems. The L.E.A.D. framework (for "Locate" the evidence, "Evaluate" the evidence, "Assemble" the evidence, and inform "Decisions"),…
Descriptors: Guidelines, Obesity, Scientific Research, Evidence
Chatterji, Madhabi – American Journal of Evaluation, 2007
This article argues with a literature review that a simplistic distinction between strong and weak evidence hinged on the use of randomized controlled trials (RCTs), the federal "gold standard" for generating rigorous evidence on social programs and policies, is not tenable with evaluative studies of complex, field interventions such as…
Descriptors: Program Effectiveness, Research Methodology, Educational Research, Research Design
Chatterji, Madhabi – Educational Researcher, 2005
Federal policy tools for gathering evidence on "What Works" in education, such as the What Works Clearinghouse's (WWC) standards, emphasize randomized field trials as the preferred method for generating scientific evidence on the effectiveness of educational programs. This article argues instead for extended-term mixed-method (ETMM) designs.…
Descriptors: Educational Research, Research Methodology, Evaluation Methods, Educational Research
Chatterji, Madhabi – Educational Researcher, 2004
Federal policy tools for gathering evidence on "What Works" in education, such as the What Works Clearinghouse's (WWC) standards, emphasize randomized field trials as the preferred method for generating scientific evidence on the effectiveness of educational programs. This article argues instead for extended-term mixed-method (ETMM) designs.…
Descriptors: Educational Research, Research Methodology, Evaluation Methods, Evaluation Research
Chatterji, Madhabi; Kwon, Young Ae; Sng, Clarice – Education Policy Analysis Archives, 2006
The No Child Left Behind (NCLB) Act of 2001 requires that public schools adopt research-supported programs and practices, with a strong recommendation for randomized controlled trials (RCTs) as the "gold standard" for scientific rigor in empirical research. Within that policy framework, this paper compares the relative utility of…
Descriptors: Research Methodology, Multitrait Multimethod Techniques, Qualitative Research, Statistical Analysis