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​​NAEP Technical DocumentationParticipation, Exclusion, and Accommodation Rates for Grade 12 Science, Digitally Based Assessment

The following table displays the school- and student-level response, exclusion, and accommodation rates for the grade 12 science national digitally based assessment. Various weights were used in the calculation of the rates, as indicated in the column headings of the table.

The participation rates reflect the participation of the original sample schools only and do not reflect any effect of substitution. The rates weighted by the base weight and enrollment show the approximate proportion of the student population in the school type and geographic region that is represented by the responding schools in the sample. The rates weighted by just the base weight show the proportion of the school population that is represented by the responding schools in the sample. These rates differ because schools differ in size.

Participation, exclusion, and accommodation rates, grade 12 science national digitally based assessment, by school type and geographic region: 2019
School type and geographic regionNumber of schools in original sample, roundedSchool participation rates (percent) before substitution (weighted by base weight and enrollment)School participation rates (percent) before substitution (weighted by base weight only)Number of students sampled, roundedWeighted percent of students excludedWeighted student participation rates (percent) after makeupsWeighted percent of students accommodated
All2,35083.7572.5627,3002.1771.8210.10
     National all12,35083.7572.5627,3002.1771.8210.10
Northeast all38087.5270.044,3001.8662.5014.97
Midwest all43072.1174.924,3002.0575.179.66
South all93094.1875.7812,0002.4275.249.51
West all62074.9966.166,7002.0770.417.96
     National public1,91087.6686.1126,1002.3571.5910.47
     National private44034.5733.391,3000.0077.375.76
Catholic9055.1261.889000.0076.764.73
Non-Catholic35017.0827.544000.0078.996.65
1 Includes national public, national private, Bureau of Indian Education, and Department of Defense Education Activity schools located in the United States.
NOTE: Numbers of schools are rounded to nearest ten, and numbers of students are rounded to nearest hundred. Detail may not sum to totals due to rounding.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2019 Science Assessment.

Last updated 04 January 2024 (ML)