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Direct linkGoldhaber, Dan; Hansen, Michael – Center for Education Data & Research, 2010
Economic theory commonly models unobserved worker quality as a given parameter that is fixed over time, but empirical evidence supporting this assumption is sparse. In this paper we report on work estimating the stability of value-added estimates of teacher effects, an important area of investigation given that new workforce policies implicitly…
Descriptors: Teacher Effectiveness, Reliability, Evidence, Teacher Evaluation
