Twelfth-grade NAEP U.S. history achievement-level results, by parental education level
* Significantly different from 2006.
NOTE: 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), 1994, 2001, and 2006 U.S. History Assessments.
To read more about achievement levels and how they are set, see Reporting the Assessment—Scale Scores and Achievement Levels.