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Goldhaber, Dan; Krieg, John; Theobald, Roddy – Center for Education Data & Research, 2018
We use a novel database of the preservice apprenticeships ("student teaching placements") of teachers in Washington State to investigate the relationship between mentor effectiveness (as measured by value added) and the future effectiveness of their mentees. We find a strong, positive relationship between the effectiveness of a teacher's…
Descriptors: Mentors, Productivity, Apprenticeships, Labor Market
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Blazar, David; Litke, Erica; Barmore, Johanna – American Educational Research Journal, 2016
Education agencies are evaluating teachers using student achievement data. However, very little is known about the comparability of test-based or "value-added" metrics across districts and the extent to which they capture variability in classroom practices. Drawing on data from four urban districts, we found that teachers were…
Descriptors: Educational Quality, Teacher Evaluation, Academic Achievement, School Districts