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

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

The Private School Universe Survey (PSS) 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 were ineligible for other reasons. In such cases, the sampled schools were coded as ineligible.

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

Number of sampled private 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 private schools	157	100.00
Eligible schools	140	89.17
No eligible students in grade	3	1.91
Does not have grade	4	2.55
School closed	8	5.10
Not a regular school	1	0.64
Other ineligible school	1	0.64
Duplicate on sampling frame	0	0.00
All twelfth-grade sampled private schools	177	100.00
Eligible schools	160	90.40
No eligible students in grade	4	2.26
Does not have grade	4	2.26
School closed	2	1.13
Not a regular school	4	2.26
Other ineligible school	2	1.13
Duplicate on sampling frame	1	0.56

The table below presents unweighted counts of sample private schools by collapsed private school type and eligibility status.

Number of sampled private schools, writing computer-based assessment (WCBA), by eligibility status and private school type: 2011

Private school type	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 private schools	Total	157	100.00
	Eligible	140	89.17
	Ineligible	17	10.83
Catholic	Total	50	100.00
	Eligible	42	84.00
	Ineligible	8	16.00
Non-Catholic	Total	107	100.00
	Eligible	98	91.59
	Ineligible	9	8.41
All twelfth-grade sampled private schools	Total	177	100.00
	Eligible	160	90.40
	Ineligible	17	9.60
Catholic	Total	55	100.00
	Eligible	55	100.00
	Ineligible	0	0.00
Non-Catholic	Total	122	100.00
	Eligible	105	86.07
	Ineligible	17	13.93

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