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NAEP Technical DocumentationDevelopment of Initial School Nonresponse Cells
The cells for nonresponse adjustments are generally functions of the school sampling strata for the individual samples. School sampling strata usually differ by assessment subject, grade, and school type (public or private). Assessment subjects that are administered together by way of spiraling have the same school samples and stratification schemes. Subjects that are not spiraled with any other subjects have their own separate school sample. In NAEP 2015, all operational assessments were spiraled together.
The initial nonresponse cells for the various NAEP 2015 samples are described below.
Public School Samples for Reading and Mathematics at Grades 4 and 8
For these samples, initial weighting cells were formed within each jurisdiction using the following nesting cell structure:
- Trial Urban District Assessment (TUDA) district vs. the balance of the state for states with TUDA districts,
- urbanicity (urban-centric locale) stratum; and
- race/ethnicity classification stratum, or achievement level, or median income, or grade enrollment.
In general, the nonresponse cell structure used race/ethnicity classification stratum as the lowest level variable. However, where there was only one race/ethnicity classification stratum within a particular urbanicity stratum, categorized achievement, median income, or enrollment data were used instead.
Public School Sample at Grade 12
- census division stratum,
- urbanicity stratum (urban-centric locale), and
- race/ethnicity classification stratum.
Private School Samples at Grades 4, 8 and 12
The initial weighting cells for these samples were formed within each grade using the following nesting cell structure:
- census division stratum,
- urbanicity stratum (urban-centric locale), and
- race/ethnicity classification stratum.
Last updated 24 April 2017 (GF)