Table of Contents | Search Technical Documentation | References
NAEP Assessment Sample Design → NAEP 2015 Sample Design → Sample Design for the 2015 National Assessment → 2015 Twelfth-Grade Public School National Assessment → School and Student Participation in the 2015 Twelfth-Grade Public School National Assessment → Weighted School Response Rates for the 2015 Twelfth-Grade Public School National Assessment
NAEP Technical DocumentationWeighted School Response Rates for the 2015 Twelfth-Grade Public School National Assessment
The following table presents unweighted counts of eligible sampled schools and participating schools, as well as weighted school response rates, for the twelfth-grade public school samples in which the 2015 mathematics, reading, science, and vocabulary assessments were conducted. The weighted school response rates estimate the proportion of the student population that is represented by the participating school sample prior to substitution.
| Region | Number of eligible sampled schools | Number of participating schools | Weighted school response rates (percent) |
|---|---|---|---|
| NOTE: Numbers of schools are rounded to nearest ten. Detail may not sum to totals due to rounding. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2015 National Assessment. | |||
| National | 700 | 650 | 91.04 |
| Northeast | 100 | 100 | 95.70 |
| Midwest | 140 | 130 | 91.60 |
| South | 270 | 250 | 91.10 |
| West | 200 | 180 | 87.38 |
Last updated 04 November 2021 (ML)