Over the past 2 years, educational policy makers have focused much of their attention on issues related to teacher effectiveness. The Obama Administration has made teacher evaluation and teacher quality a central feature of many of its educational policies, including Race to the Top (RTTT), Investing in Innovation (i3), and the Teacher Incentive…

As schools and districts seek to recruit teachers, individuals in non-teaching professions are an appealing possible pool. These potential teachers come with work experience and may have expertise that would serve them well in the classroom. While there has been substantial rhetoric assailing the virtues of teachers with prior professional…

This policy brief, a quick look at some aspects of the debate, illustrates the differences in New York City public schools that would result when layoffs are determined by seniority in comparison to a measure of teacher effectiveness. Due to data limitations and an interest in simplicity, this analysis employs the value added of teachers using the…

Value-added models in education research allow researchers to explore how a wide variety of policies and measured school inputs affect the academic performance of students. Researchers typically quantify the impacts of such interventions in terms of "effect sizes", i.e., the estimated effect of a one standard deviation change in the…