In education research test scores are a common object of analysis. Across studies test scores can be an important outcome, a highly predictive covariate, or a means of assigning treatment. However, test scores are a measure of an underlying proficiency we can't observe directly and so contain error. This measurement error has implications for how…

There is no comprehensive database of U.S. district-level test scores that is comparable across states. We describe and evaluate a method for constructing such a database. First, we estimate linear, reliability-adjusted linking transformations from state test score scales to the scale of the National Assessment of Educational Progress (NAEP). We…

This paper is part of a series investigating the implementation of competency education. The purpose of the paper is to explore how districts and schools can redesign grading systems to best help students to excel in academics and to gain the skills that are needed to be successful in college, the community, and the workplace. In order to make the…

National tests, public examinations, and vocational qualifications in England are used for a variety of purposes, including the certification of individual learners in different subject areas and the accountability of individual professionals and institutions. However, there has been ongoing debate about the reliability and validity of their…

In this policy brief, the author explores the problems with attainment measures when it comes to evaluating performance at the school level, and explores the best uses of value-added measures. These value-added measures, the author writes, are useful for sorting out-of-school influences from school influences or from teacher performance, giving…

Interest in end-of-year accountability exams has increased dramatically since the passing of the No Child Left Behind Act in 2001. With this increased interest comes a desire to use student data collected throughout the year to estimate student proficiency and predict how well they will perform on end-of-year exams. This article uses student…

Process/product instruments of the 1970s attempt to evaluate teaching based on classroom observations. Performance-based teacher assessment is an ineffective, inappropriate method that does not truly assess teaching. Alternative methods (portfolios, student evaluations, peer evaluation, dossiers, and 360-degree feedback) support professional…

This document contains three papers developed by the Center for the Study of Evaluation's (CSE's) Research into Practice Project. The first paper, "A Process for Designing and Implementing a Dual Purpose Evaluation System," by Pamela Aschbacher and James Burry, provides a model for evaluating programs for two purposes simultaneously: (1) program…

Value-added modeling (VAM) to estimate school and teacher effects is currently of considerable interest to researchers and policymakers. Recent reports suggest that VAM demonstrates the importance of teachers as a source of variance in student outcomes. Policymakers see VAM as a possible component of education reform through improved teacher…