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NAEP Sample Design → NAEP 2002 Sample Design → 2002 National Main Assessment Sample Design → School Sample Selection for the 2002 National Main Assessment → School Selection for Twelfth-Grade Public Schools → Frame and Sample Sizes by Minority Strata, Twelfth-Grade Public School Sample

NAEP Technical DocumentationFrame and Sample Sizes by Minority Strata, Twelfth-Grade Public School Sample

The following table presents total frame counts, enrollment, and sample counts by stratum (high minority and low minority), for the final twelfth-grade school sample for the 2002 national main assessment and the equating link study to the 1998 assessment.

Frame and sample sizes for public schools, grade 12 national main assessment, by minority strata: 2002

Stratum	Frame schools	Frame enrollment	Sample schools
All public schools	21,800	3,297,000	680
High minority stratum	6,600	1,605,000	390
Low minority stratum	15,300	1,691,000	290
NOTE: Detail may not sum to totals because of rounding. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2002. The frame counts are from the Common Core of Data (CCD).

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