This report presents results focusing on the vocabulary component of the 2013 National Assessment of Educational Progress (NAEP) reading assessment. Examples of vocabulary questions at grades 4, 8, and 12 are presented in the report along with the percentages of students who responded correctly. Students' overall performance on the vocabulary questions is reported as average scores on the NAEP vocabulary scale. National results from 2015 are compared to results from 2011 and 2009 for grades 4 and 8, and to results from 2009 at grade 12 (the NAEP reading assessment was not administered in 2011 at grade 12). Fourth- and eighth-graders scored higher in vocabulary in 2013 than in 2011. In comparison to 2009, there were no significant score changes in 2013 at grades 4, 8, or 12.
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