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Direct linkViadero, Debra – Education Week, 2009
A new study by a public and labor economist suggests that "value added" methods for determining the effectiveness of classroom teachers are built on some shaky assumptions and may be misleading. The study, due to be published in February in the "Quarterly Journal of Economics," is the first of a handful of papers now in the…
Descriptors: Teacher Effectiveness, Teacher Evaluation, Context Effect, Academic Achievement
