The first large-scale, random assignment study of the effects of secondary school math teachers from Teach For America and the Teaching Fellows programs found they were as effective as, and in some cases more effective than, teachers receiving traditional certification. The study was sponsored...

Paying teachers for their performance rather than solely on experience and education is not a new idea, but it is gaining traction in today's climate of educational accountability. Yet the research has not kept up with policy, in part because most programs do not last long enough to be studied...

Paying teachers for their performance rather than solely on experience and education is not a new idea, but it is gaining traction in today's climate of educational accountability. Yet the research has not kept up with policy, in part because most programs do not last long enough to be studied...

This article addresses likely error rates for measuring teacher and school performance in the upper elementary grades using value-added models applied to student test score gain data. Using formulas based on ordinary least squares and empirical Bayes estimators, error rates for comparing a...