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Goldhaber, Dan; Liddle, Stephanie; Theobald, Roddy; Walch, Joe – Center for Education Data & Research, 2010
Stories about the importance of teacher effectiveness for student achievement are currently ubiquitous in the media (Gladwell 2008; Kristoff 2009; Felch et al 2010). Teacher quality is also the focus of significant national efforts and investments. A growing body of quantitative research supports the focus on teacher and teacher effectiveness.…
Descriptors: Academic Achievement, Mathematics Achievement, Teacher Effectiveness, Credentials
Goldhaber, 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