NAEP Assessment Sample Design → NAEP 2011 Sample Design → Sample Design for the 2011 National Assessment → 2011 Writing Computer-Based Assessment (WCBA) → Public School 2011 Writing Computer-Based Assessment (WCBA) → Ineligible Public Schools for the 2011 Writing Computer-Based Assessment (WCBA)

NAEP Technical DocumentationIneligible Public Schools for the 2011 Writing Computer-Based Assessment (WCBA)

The Common Core of Data (CCD) public school file from which most of the sampled schools were drawn corresponds to the 2007-2008 school year, 3 years prior to the assessment school year. During the intervening period, some of these schools either closed, no longer offered the grade of interest, or became ineligible for other reasons. In such cases, the sampled schools were considered to be ineligible.

The table below presents unweighted counts of sampled public schools by grade and eligibility status, including the reason for ineligibility.

Number of sampled public schools, writing computer-based assessment (WCBA), by eligibility status and grade: 2011

Eligibility status	Unweighted count of schools	Unweighted percentage
NOTE: Detail may not add up to totals due to rounding. Percentages are based on rounded counts. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2011 Writing Computer-Based Assessment.
All eighth-grade sampled public schools	890	100.00
Eligible schools	841	94.49
No eligible students in grade	1	0.11
Does not have grade	12	1.35
School closed	28	3.15
Not a regular school	8	0.90
Other ineligible school	0	0.00
Duplicate on sampling frame	0	0.00
All twelfth-grade sampled public schools	1,200	100.00
Eligible schools	1,100	94.57
No eligible students in grade	3	0.25
Does not have grade	13	1.09
School closed	16	1.34
Not a regular school	30	2.51
Other ineligible school	3	0.25
Duplicate on sampling frame	0	0.00

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