http://ift.tt/eA8V8J The Measurement According to its website , "The National Assessment of Educational Progress (NAEP) is the largest nationally representative and continuing assessment of what America's students know and can do in various subject areas." Its mandate to test was included in the original No Child Left Behind legislation. NAEP tests are given to a representative sampling of about 30,000 private and public school students every two years in Grades 4, 8 and 12. NAEP , which is administered by a federal agency that is part of the national Department of Education, periodically tests students in math, reading, science, the arts, civics, geography, U.S. history, and technical literacy. The NAEP started testing students in 1969-1970, but the design of the tests used today dates to 1992. Its current testing " partners " include the Council of Chief State School Officers (CCSSO), one of the groups behind the national Common Core Standards, Educat...