Achievement-level results in mathematics, by students with and without disabilities, grade 4: Various years, 1996-2005
* Significantly different from 2005.
NOTE: SD = students with disabilities. View complete data with standard errors for grade 4.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), various years, 1996–2005 Mathematics Assessments.