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NAEP Sample Design → Sample Design for the 2001 Assessment → National Main Assessment Sample Design in 2001 → Target Population and Sample Sizes of the 2001 National Main Assessment

Target Population and Sample Sizes of the 2001 National Main Assessment

The target population for the 2001 national main assessment consisted of fourth-, eighth-, and twelfth-grade students enrolled in public and private elementary and secondary schools throughout the United States and the District of Columbia. This population included the Bureau of Indian Affairs (BIA) and the Department of Defense Domestic Dependents Elementary and Secondary Schools (DDESS).

The table below shows the target number of students to be assessed and the realized number of assessed students. The realized sample sizes exceeded the targets by 20 to 30 percent, with the highest ratio in fourth grade. The unusually high ratio was the result of conservative estimates of response and eligibility rates in the projections computing sample sizes.

Sample size goals, by subject area and grade, national main assessment: 2001
Grade Subject area Sample size goal Realized sample size
Total 48,000 60,100
All Geography 22,000 27,600
U.S. history 26,000 32,600
4 Geography 6,000 7,900
U.S. history 6,000 7,800
8 Geography 8,000 10,000
U.S. history 10,000 12,700
12 Geography 8,000 9,700
U.S. history 10,000 12,100
NOTE: Detail may not sum to total because of rounding.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2001.

Last updated 08 May 2008 (MH)

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