Forty-six states and one jurisdiction participated in the 2009 science assessment. The schools and students participating in NAEP assessments are selected to be representative of all schools nationally and of public schools at the state level. Samples of schools and students are drawn from participating states and from the District of Columbia and Department of Defense schools. While results for students assessed in Alaska, the District of Columbia, Kansas, Nebraska, and Vermont contributed to the results for the nation at grades 4 and 8, sample sizes were not large enough to report results for these states/jurisdictions separately. In addition, 17 urban districts participated in the 2009 Trial Urban District Assessment (TUDA) in science.
State Participation in Reading and Mathematics 2009
In 2009, as in 2003, 2005 and 2007, all 50 states and 2 jurisdictions—District of Columbia and Department of Defense Education Activity (DoDEA)—participated in the reading and mathematics assessments. In addition, 18 urban districts participated in the Trial Urban District Assessment (TUDA) in reading and mathematics. State and district results were collected in reading and mathematics at grades 4 and 8.
In 2007, forty-five states and Department of Defense Education Activity schools (DoDEA) participated in the writing assessment, plus 10 urban districts (on a trial basis). State and district results were collected in writing at grade 8 only.
Find out more information about each state's student and school populations and its NAEP testing history and results in the State Profiles.