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NAEP Technical DocumentationSampling Frame for the 2008 Public School Arts Assessment
The sampling frame for public schools was derived from the Common Core of Data (CCD) file corresponding to the 2004-05 school year. The CCD files provided the frame for all regular public, state-operated public, Bureau of Indian Education (BIE), and Department of Defense Domestic Dependent Elementary and Secondary Schools (DDESS) open during the 2004-05 school year.
The sampling frame was restricted to schools located in the primary sampling units (PSUs) selected for the NAEP 2008 arts assessment. In addition, the sampling frame excluded ungraded schools, vocational schools with no enrollment, special education only schools, home-school entities, prison or hospital schools, and juvenile correctional institutions.
The following table presents the number of schools and estimated enrollment for the public school frame for grade eight. The unweighted estimated enrollment is restricted to the selected PSUs. The weighted estimated enrollment incorporates the PSU weight (inverse of the probability of selecting the PSU), and thus is a national estimate of the number of public school students in the eighth grade.
Grade |
School count in sampled PSUs | Estimated enrollment (unweighted) | Estimated enrollment (weighted) |
|---|---|---|---|
| SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2008 Arts Assessment. | |||
| 8 | 10,736 | 1,975,366 | 3,755,133 |
For quality control purposes, school and student counts from the sampling frame were compared to school and student counts from previous eighth-grade public school frames. No major discrepancies were found.
Last updated 11 January 2011 (JL)