The percentages of fourth-graders performing at or above Basic and at or above Proficient were higher in 2010 than in 1994. Apparent differences in percentages between 2010 and 2006 were not statistically significant.
Read specific descriptions of what fourth-graders should know and be able to do at the Basic, Proficient, and Advanced
U.S. history achievement levels.
Read more information on how to interpret NAEP U.S. history results, including how each student group is defined.