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NAEP Technical DocumentationTarget Twelfth-Grade Private School Sample Sizes

This table presents the twelfth-grade target private school sample sizes for the NAEP 2002 national main assessment. The first column shows the target student assessment yields for the operational assessments (national main reading and writing). The second column then adds the targets for the equating samples. These overall targets are adjusted upwards to allow for school and student nonresponse. The projections for these are the actual response rates in the NAEP 2000 assessment (for each grade and private school subgroup separately). The final targets in the last column of the table are used then to determine school sample sizes and sampling rates.

Target private school sample sizes, grade 12 national main assessment, by reporting group: NAEP 2002

Reporting group	Operational assessment target	Overall target including equating sample	NAEP 2000 school response rate (percent)	NAEP 2000 student response rate (percent)	Nonresponse adjusted target
Total	12,000	13,300	†	†	19,580
Catholic	6,000	6,650	81.3	87.2	9,380
Lutheran	1,500	1,565	85.2	91.2	2,010
Conservative Christian	1,500	1,695	70.0	91.0	2,660
Other Private	3,000	3,390	70.0	87.7	5,530
NOTE: Detail may not sum to totals because of rounding. Only the reporting group NAEP 2000 school and student response rates were used in the calculation of targets (i.e., for Catholic, Lutheran, Conservative Christian, and Other Private separately), not the overall private school response rates. The latter were not retained in the calculation of targets (they are replaced with a †). The overall private adjusted target is the summation of the four reporting group adjusted targets. The response rates in the table are rounded to three digits, so the adjusted targets given in the table may not match adjusted targets computed using the presented numbers in the table. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 and 2002.

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