Trend in twelfth-grade NAEP writing average scores, by students with disabilities (SD) who could be assessed
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* Significantly different (p < .05) from 2007.
NOTE: The results for students with disabilities are based on students who were assessed and cannot be generalized to the total population of such students. 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), 1998, 2002, and 2007 Writing Assessments.