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Stockard, Jean – Current Issues in Education, 2010
A large body of literature documents the central importance of fidelity of program implementation in creating an internally valid research design and considering such fidelity in judgments of research quality. The What Works Clearinghouse (WWC) provides web-based summary ratings of educational innovations and is the only rating group that is…
Descriptors: Research Design, Educational Innovation, Program Implementation, Program Effectiveness

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