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CLOSUP Lecture Series

Value-Added with Multidimensional Teacher Ability

Mar 7, 2012, 4:00-5:30 pm EST
Gerald R. Ford School of Public Policy Paul and Nancy O'Neill Classroom
Abstract We examine the theoretical and practical implications of ranking teachers according to a one dimensional value-added metric when teacher effectiveness is multi-dimensional. In particular, we consider the cases in which teachers teach multiple subjects or multiple student types. We outline the assumptions under which a standard value-added estimator correctly ranks teachers according to their social value. We demonstrate that these assumptions fail to hold empirically.
Ford School