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Download full textNelson, Michael C.; Cordray, David S.; Hulleman, Chris S.; Darrow, Catherine L.; Sommer, Evan C. – Society for Research on Educational Effectiveness, 2010
An educational intervention's effectiveness is judged by whether it produces positive outcomes for students, with the randomized controlled trial (CRT) as a valuable tool for determining intervention effects. However, the intervention-as-implemented in an experiment frequently differs from the intervention-as-designed, making it unclear whether…
Descriptors: Intervention, Program Effectiveness, Demonstration Programs, Experimental Programs
