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Student sample sizes and target populations in NAEP mathematics, by age: 2008
Age Sample size Target population
Age 9 8,900 3,829,000
Age 13 8,700 3,596,000
Age 17 9,900 3,608,000
NOTE: The sample size is rounded to the nearest hundred and the target population is rounded to the nearest thousand.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2008 Long-Term Trend Mathematics Assessment.

2008 Long-Term Trend Report Card 2008 Long-Term Trend Report Card