Faced with the problem of how to measure the magnitude of economic disadvantage in the populations served by schools or districts, researchers addressing school finance topics have invariably turned to the fraction of students eligible for free- or reduced-lunches (FRPL). But the facile dependence on FRPL may be problematic. A large and growing…

As the education reform movement increasingly focuses on teachers and teaching, educators, policy-makers, and researchers need valid and reliable measures that can be used to evaluate individual teachers, provide guidance for improving teaching performance, and support research in ways that advance instruction and classroom dialog and practice. A…