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The NAEP Database → Quality Control of NAEP Data Entry → Summary of Quality Control Error Analysis for NAEP 2008 Data Entry

Summary of Quality Control Error Analysis for NAEP 2008 Data Entry

The following summary tables give the upper 99.8 percent confidence limit for the error rates for each of the instruments as well as the sampling information. The 99.8 percent confidence limit and the selection rates indicated were chosen to make these results comparable to those of administrations since 1983, all of which used the same parameters. There were no teacher or school questionnaires administered with the long-term trend assessment, and no teacher questionnaires were administered with the arts assessment.

Summary of quality control error analysis for data entry of student booklets, by age/grade and assessment: 2008
Assessment Age/grade Number of samples Selection rate Number of different booklets Number of booklets sampled Number of fields sampled Number of errors Observed error rate Upper 99.8% confidence limit
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2008 Long-Term Trend and 2008 Arts Assessments.
Mathematics Long-Term Trend (LTT) Age 9 8,866 1/633 7 14 1,310 0 0.0000 0.0047
Age 13 8,734 1/672 7 13 1,371 0 0.0000 0.0045
Age 17 9,902 1/900 6 11 1,261 1 0.0008 0.0067
Reading Long-Term Trend (LTT) Age 9 8,923 1/223 20 40 2,648 1 0.0004 0.0032
Age 13 8,767 1/219 20 40 3,040 0 0.0000 0.0020
Age 17 9,963 1/249 20 40 3,032 1 0.0003 0.0028
Visual arts Grade 8 4,003 1/250 8 16 440 0 0.0000 0.0140
Music Grade 8 4,028 1/252 8 16 720 0 0.0000 0.0086

Summary of quality control error analysis for data entry of school characteristics and policies questionnaires, arts assessment, by grade: 2008
Grade Total samples Selection rate Different booklets Number of booklets sampled Number of fields sampled Number of errors Observed error rate Upper 99.8% confidence limit
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2008 Arts Assessment.
8 579 1/116 1 5 895 2 0.0022 0.0116


Summary of quality control error analysis of students with disabilities (SD) and English language learners (ELL) questionnaire, by instrument: 2008
Accommodation Instrument Total samples Selection rate Different booklets Number of booklets sampled Number of fields sampled Number of errors Observed error rate Upper 99.8% confidence limit
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2008 Long-Term Trend and 2008 Arts Assessments.
Students with disabilities (SD) Long-Term Trend 2,070 1/518 1 4 248 0 0.0000 0.0247
Arts 1,053 1/263 1 4 256 2 0.0078 0.0400
English language learners (ELL) Long-Term Trend 1,926 1/482 1 4 168 0 0.0000 0.0363
Arts 645 1/161 1 4 176 0 0.0000 0.0347

Last updated 15 February 2011 (GF)
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National Center for Education Statistics - http://nces.ed.gov
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