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The Value Of Value-Added: Science, Technology, And Policy In Educational Evaluation, Daniel Douglas
The Value Of Value-Added: Science, Technology, And Policy In Educational Evaluation, Daniel Douglas
Dissertations, Theses, and Capstone Projects
In the first decade of the 21st century, researchers and policymakers in K-12 education began to focus on evaluating teacher and school performance based on students’ standardized test scores. One evaluative technique, value-added assessment (VAA), has been given particular attention. This research presents a comprehensive study of the theoretical, technical, historical and political dimensions VAA. Theoretically, the assumptions that underlie value-added diverge significantly from the observed operations of the schools and classrooms these models are supposed to evaluate. Technically, even if the theoretical assumptions are accepted, teachers’ actual value-added rankings are shown to be unstable across time periods and …