Using administrative longitudinal data from five states, this report looks at how value-added measures of teacher performance are affected by changes in state standards and assessments. In most cases, the researchers found that measures of teacher value added are similarly stable in transition years and nontransition years.
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16 May 2015
The federal Race to the Top competition provided significant impetus for states to adopt “value-added” models as a part of their teacher evaluation systems. This study examines how teacher evaluations are affected by incorrectly attributing changes in student's test scores to the value-added of teachers in spring classrooms, and explores methods that can provide the best approximation in the absence of more detailed data.