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Scores increased for higher- and lower-performing students at both grades 4 and 8.
Grade 4
Grade 8

Trend in fourth-grade NAEP mathematics percentile scores

Key. Dashed line is accommodations not permitted. Solid line is accommodations permitted. 

Findings

  • Scores at the 10th, 25th, 50th, 75th, and 90th percentiles were higher in 2007 than in all previous assessment years.
  • Scores for lower-performing students (those at the 10th percentile) were 31 points higher in 2007 than in 1990, while the scores for higher-performing students (those at the 90th percentile) were 21 points higher in 2007 than in 1990.

* Significantly different (p < .05) from 2007.
NOTE: Differences calculated using unrounded numbers. View complete data with standard errors.

SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), various years, 1990–2007 Mathematics Assessments.

To read more about achievement levels and how they are set, see Reporting the Assessment—Scale Scores and Achievement Levels.

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National Assessment of Educational Progress, National Center for Education Statistics
National Assessment Governing Board
Institute of Education Sciences, U.S. Department of Education