The Every Student Succeeds Act (ESSA) replaced the No Child Left Behind Act with great fanfare and enthusiasm. Granting more power to states and curbing what was seen as federal overreach was well received. However, the new legislation maintains a predominately test-based accountability system with a federal mandate for interventions in well over…

Due to the broad acceptance of the Programme for International Student Assessment (PISA) and other comparative studies as instruments of policymaking, its accuracy is essential. This article attempts to demonstrate omissions in the conceptualisation, and consequently in calculation and interpretation, of one of the central points of PISA 2006 and…

This report presents the value-added models that will be used to measure school and teacher effectiveness in the District of Columbia Public Schools (DCPS) in the 2010-2011 school year. It updates the earlier technical report, "Measuring Value Added for IMPACT and TEAM in DC Public Schools." The earlier report described the methods used…

This paper highlights measurement issues faced when attempting to assess and interpret results of a school improvement project. Based on the assumption that to measure effectiveness, one must measure a wide variety of school factors, the paper presents a broad perspective on measurement problems and dilemmas in analyzing norm-referenced test data…