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The Common Core of Data (CCD) public school file from which most of the sampled schools were drawn corresponds to the 2013-2014 school year, two years prior to the assessment school year. During the intervening period, some of these schools either closed, no longer offered the grade of interest, or became ineligible for other reasons. In such cases, the sampled schools were considered to be ineligible.
The table below presents unweighted counts of sampled public schools by eligibility status, including the reason for ineligibility.
| Eligibility Status | Unweighted count of schools | Unweighted percentage |
|---|---|---|
| All eighth-grade sampled public schools | 260 | 100.00 |
| Eligible schools | 260 | 100.00 |
| No eligible students in grade | 1 | 0.38 |
| Does not have sampled grade | 3 | 1.15 |
| School closed | 2 | 0.77 |
| Not a regular school | 2 | 0.77 |
| Other ineligible school | 0 | 0.00 |
| Duplicate on sampling frame | 0 | 0.00 |
| NOTE: Total and eligible school counts are rounded to nearest ten. Percentages are based on rounded counts. Detail may not sum to total due to rounding. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2016 Arts Assessment. | ||