Researchers explored how 13 states in which policymakers have adopted an A-F school letter grade accountability system performed on the National Assessment of Educational Progress (NAEP) post-policy implementation. Researchers found mixed results, with approximately half of these 13 states increasing achievement post-policy, and the other…

Federally mandated standardized testing (i.e., in core subject areas and certain grade levels), as an element of educational accountability, began in 2002 with the No Child Left Behind Act. With that step, large-scale assessments came to serve as one of the foundations of accountability-based systems and policies not only for districts, schools…