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The following table shows the unweighted counts and percentages of sampled schools that were eligible and ineligible, by reason for ineligibility, for the fourth- and eighth-grade public school state assessment samples.
| Eligibility status | Grade 4 | Grade 8 | ||
|---|---|---|---|---|
| Unweighted count of schools | Unweighted percentage | Unweighted count of schools | Unweighted percentage | |
| All sampled public schools | 8,520 | 100.00 | 7,260 | 100.00 |
| Eligible | 8,270 | 97.07 | 6,940 | 95.62 |
| Ineligible | 250 | 2.93 | 318 | 4.38 |
| Has sampled grade, but no eligible students | 35 | 0.41 | 47 | 0.65 |
| Does not have sampled grade | 65 | 0.76 | 81 | 1.12 |
| School closed | 85 | 1.00 | 66 | 0.91 |
| Not a regular school | 55 | 0.65 | 99 | 1.36 |
| Other ineligible school | 10 | 0.12 | 24 | 0.33 |
| Duplicate on sampling frame | 0 | 0 | 1 | 0.01 |
| NOTE: Numbers of schools are rounded to nearest ten, except those pertaining to ineligible schools. Detail may not sum to totals due to rounding. Percentages are based on rounded counts. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2019 State Mathematics and Reading Assessments. | ||||