NAEP Technical DocumentationFinal Participation, Exclusion, and Accommodation Rates

			Grade 4 Mathematics Grade 4 Reading Grade 4 Science, Digitally Based Assessment Grade 4 Science, Paper-Based Assessment Grade 8 Mathematics Grade 8 Reading Grade 8 Science, Digitally Based Assessment Grade 8 Science, Paper-Based Assessment Grade 12 Mathematics, Digitally Based Assessment Grade 12 Reading, Digitally Based Assessment Grade 12 Science, Digitally Based Assessment Grade 12 Mathematics, Paper-Based Assessment Grade 12 Reading, Paper-Based Assessment Grade 12 Science, Paper-Based Assessment

Final participation, exclusion, and accommodation rates are presented in quality control tables for each grade and subject by geographic domain and school type. School and student-level participation rates have been calculated according to National Center for Education Statistics (NCES) standards as they have been for previous assessments.

At the school level, the overall national private school domain at grades 4, 8, and 12 had participation rates below 85 percent. At the student level, there were two reporting subgroups with participation rates below 85 percent: New Hampshire for both mathematics and reading at grade 8 and New York in reading at grade 8. As required by NCES standards, nonresponse bias analyses were conducted on each reporting group falling below the 85 percent participation threshold.

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