Standardized testing has not improved student achievement. After No Child Left Behind (NCLB) passed in 2002, the US slipped from 18th in the world in math on the Programme for International Student Assessment (PISA) to 31st place in 2009, with a similar drop in science and no change in reading. [95] [145] [144] A May 26, 2011, National Research Council report found no evidence test-based incentive programs are working: "Despite using them for several decades, policymakers and educators do not yet know how to use test-based incentives to consistently generate positive effects on achievement and to improve education." [154]
this hasn't improve at all