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NAEP Technical DocumentationWeighted Student Response and Exclusion Rates for the 2011 Private School National Science Assessment

The following table presents the weighted student response and exclusion rates for the grade 8 national science assessment. The exclusion rates give the percentage of students excluded among all eligible students. Excluded students must necessarily be either students with disabilities (SD) or English language learners (ELL). The response rates indicate the percentage of students assessed among those who were intended to take the assessment from within the participating schools. Thus, students who were excluded are not included in the denominators of the response rates.

Weighted student response and exclusion rates for private schools, grade 8 science assessment, by school type: 2011

Private school type	Weighted student response rate	Weighted percentage of all students who are SD and excluded	Weighted percentage of all students who are ELL and excluded
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2011 National Science Assessment.
All private	93.86	0.18	0.00
Catholic	94.27	0.35	0.00
Non-Catholic	93.34	0.00	0.00

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