In the twenty-first century, the use of standardized tests as the primary means to evaluate schools and teachers in the United States has contributed to severe dilemmas, including misleading information on what students know, lower-level instruction, cheating, less collaboration, unfair treatment of teachers, and biased teaching. This article…

There is often confusion about distinctions between growth models and value-added models. The first half of this paper attempts to dispel some of these confusions by clarifying terminology and illustrating by example how the results from a large-scale assessment can and will be used to make inferences about student growth and the value-added…

In this report, the authors describe the value-added models used as part of teacher evaluation systems in the District of Columbia Public Schools (DCPS) and in eligible DC charter schools participating in Race to the Top. They estimated (1) teacher effectiveness in DCPS and eligible DC charter schools during the 2011-2012 school year; and (2)…