Ensuring Fair and Reliable Measures of Effective Teaching

This non-technical research brief for policymakers and practitioners summarizes recent analyses from the Measures of Effective Teaching (MET) project on identifying effective teaching while accounting for differences among teachers’ students, on combining measures into composites, and on assuring reliable classroom observations. (Editor’s note: The study was part of a three-year, $50 million project funded by the Bill & Melinda Gates Foundation that included dozens of researchers and over 3,000 teachers who volunteered.

It concluded the best approach for assessing the strength of a teacher is relying on a mix of classroom observations with at least two observers, student feedback, and value-added measurements.