Although states and school districts have begun to evaluate school principals, there is little evidence on the validity of principal evaluation measures. To fill this gap, we examined Pennsylvania's Framework for Leadership (FFL), a tool for measuring and evaluating principals' professional practices. Using data on more than 300 principals, we…

States across the country are developing systems for evaluating school principals on the basis of student achievement growth. A common approach is to hold principals accountable for the value added of their schools--that is, schools' contributions to student achievement growth. In theory, school value added can reflect not only principals'…

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)…