Teams of educators conducted lesson study independently, supported by a resource kit that included mathematical tasks, curriculum materials, lesson videos and plans, and research articles, as well as protocols to support lesson study. The mathematical resources focused on linear measurement interpretation of fractions. This report examines the…

Teacher judgments about students' academic abilities are important for instructional decision making and potential special education entitlement decisions. However, the small number of studies evaluating teachers' judgments are limited methodologically (e.g., sample size, procedural sophistication) and have yet to answer important questions…

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…

Since the demise of the key stage 2 (age 11) science Standard Assessment Tests (SATs) in England, teachers have been getting to grips with the issue of teacher assessment. Although arguably providing a more valid picture of children's scientific enquiry skills than a paper-and-pencil test, observations of investigations in progress face the…

Interest in Student Growth Modeling (SGM) and Value Added Modeling (VAM) arises from educators concerned with measuring the effectiveness of teaching and other school activities through changes in student performance as a companion and perhaps even an alternative to status. Several formal statistical models have been proposed for year-to-year…

Growing concerns over the achievement of U.S. students have led to proposals to reward good teachers and penalize (or fire) bad ones. The leading method for assessing teacher quality is "value added" modeling (VAM), which decomposes students' test scores into components attributed to student heterogeneity and to teacher quality. Implicit…

This study examined whether having a teacher who chose an alternate route to certification (AC) rather than a teacher who chose a traditional certification route (TC) affects the reading and math achievement of elementary school students. The study included about 2,600 kindergarten through fifth-grade students and their 174 teachers. These…

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…

Traditional measures of teachers' competency have been widely criticized for their lack of authenticity and predictive validity. There is little evidence regarding the technical soundness of traditional teacher licensure tests and little research documenting the validity of such tests for identifying competent teachers or effective teaching.…

Recently, educational researchers and practitioners have turned to value-added models to evaluate teacher performance. Although value-added estimates depend on the assessment used to measure student achievement, the importance of outcome selection has received scant attention in the literature. Using data from a large, urban school district, I…

Value-added modeling continues to gain traction as a tool for measuring teacher performance. However, recent research (Rothstein, 2009a, 2009b) questions the validity of the value-added approach by showing that it does not mitigate student teacher sorting bias (its presumed primary benefit). Our study explores this critique in more detail.…

This study explored the relationships among the components of the Arizona Department of Education's new teacher evaluation model, with a particular focus on the extent to which ratings from the state model's teacher observation instrument differentiated higher and lower performance. The study used teacher-level evaluation data collected by the…

The purpose of my study was to determine if there are any differences in performance measures of student teachers with varying levels of participation in professional development schools. The population in my study was the 2002 through the spring of 2006 kindergarten through 6th-grade student teachers from a small, private postsecondary…

In an effort to explore the impact of performance incentives in education, the National Center on Performance Incentives (NCPI) partnered with the Metropolitan Nashville Public Schools (MNPS) to conduct the Project on Incentives in Teaching, or POINT. The study examines the effects on student outcomes of paying eligible teachers bonuses of up to…

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…