In December 2015, President Barack Obama signed the Every Student Succeeds Act (ESSA), which replaced No Child Left Behind (NCLB), as the nation's major law governing public schools. ESSA retains the requirement that states test all students in reading and math in grades three through eight and once in high school, as well as the requirement that…

The Obama administration's Race to the Top competitive grant program initiated an unprecedented wave of state teacher-evaluation reform across the country. To date, most of the scholarly analysis of this activity has focused on the design of the evaluation instruments or the implementation of the new evaluations by districts and schools. But…

In recent years policymakers have seized on teacher evaluation as a primary lever for improving schools. Of all school factors--from expanded school calendars to smaller class sizes to community and family engagement programs--teachers contribute the most to student achievement. Policymakers reason that evaluating teachers based on their students'…