Former Florida Governor Jeb Bush and the Foundation for Excellence in Education have embarked on a well-funded campaign to spread selected Florida education reforms to other states. These reforms include assigning letter grades to schools, high-stakes testing, promotion and graduation requirements, bonus pay, a wide variety of alternative teacher…

This study examined whether having a teacher with National Board for Professional Teaching Standards (NBPTS) certification improves student achievement. The study analyzed data on about 3,800 second through fifth grade students taught by 198 teachers in the Los Angeles Unified School District. Study data were from 2003-04 and 2004-05. The authors…

We use administrative data on North Carolina public schools to document the tendency for more highly qualified teachers to be matched with more advantaged students, and we measure the bias this pattern generates in estimates of the impacts of various teacher qualifications on student achievement. One of the strategies we use to minimize this bias…

This study uses administrative data linking students and teachers at the classroom level to estimate teacher value-added to student test scores. We find that variation in teacher quality is an important contributor to student achievement--more important than has been implied by previous work. This result is attributable, at least in part, to the…

Most studies that have fueled alarm over the attrition and mobility rates of high-quality teachers have relied on proxy indicators of teacher quality, which recent research finds to be only weakly correlated with value-added measures of teachers' performance. We examine attrition and mobility of teachers using teacher value-added measures for…