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NAEP Assessment Sample Design → NAEP 2006 Sample Design → 2006 Private School Sample → Ineligible Private Schools for the 2006 Assessment

NAEP Technical DocumentationIneligible Private Schools for the 2006 Assessment

The Private School Universe Survey (PSS) school file from which most of the sampled schools were drawn corresponds to the 2003-2004 school year, two 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 grade and eligibility status, including the reason for ineligibility.

NAEP sample private schools, by eligibility status and grade: 2006

Grade	Eligibility status	Unweighted count of schools	Unweighted percent
4	All fourth-grade sampled private schools	140	100.00
	Eligible school	120	87.71
	No eligible students in grade	2	1.43
	Does not have grade	6	4.29
	School closed	6	4.29
	Not a regular school	2	1.43
	Other ineligible school	1	0.71
	Duplicate on sampling frame	0	0.00
8	All eighth-grade sampled private schools	160	100.00
	Eligible school	140	87.50
	No eligible students in grade	0	0.00
	Does not have grade	7	4.38
	School closed	6	3.75
	Not a regular school	7	4.38
	Other ineligible school	0	0.00
	Duplicate on sampling frame	0	0.00
12	All twelfth-grade sampled private schools	170	100.00
	Eligible school	140	80.35
	No eligible students in grade	8	4.71
	Does not have grade	8	4.71
	School closed	2	1.18
	Not a regular school	14	8.24
	Other ineligible school	1	0.59
	Duplicate on sampling frame	1	0.59
NOTE: Total and eligible school counts are rounded to nearest ten.  Percentages are rounded.  Detail may not add up 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), 2006.

The table below presents unweighted counts of sampled private schools by private school type, eligibility status, and grade. The differences are considerable across private school types. Schools with unknown affiliation according to the PSS now have an affiliation since it was determined during the assessment.

NAEP sample private schools eligibility status, by grade and private school type: 2006

Grade	Private school type	Eligibility status	Count	Percentage
4	All Private	Total	140	100.00
		Ineligible	17	12.14
		Eligible	120	85.71
	Roman Catholic	Total	60	100.00
		Ineligible	4	6.67
		Eligible	50	83.33
	Conservative Christian	Total	30	100.00
		Ineligible	4	13.33
		Eligible	20	66.67
	Lutheran	Total	10	100.00
		Ineligible	0	0.00
		Eligible	10	100.00
	Other Private	Total	50	100.00
		Ineligible	9	18.00
		Eligible	40	80.00
8	All Private	Total	160	100.00
		Ineligible	20	12.50
		Eligible	140	87.50
	Roman Catholic	Total	70	100.00
		Ineligible	3	4.29
		Eligible	70	100.00
	Conservative Christian	Total	20	100.00
		Ineligible	3	15.00
		Eligible	20	100.00
	Lutheran	Total	10	100.00
		Ineligible	1	10.00
		Eligible	10	100.00
	Other Private	Total	50	100.00
		Ineligible	13	26.00
		Eligible	40	80.00
12	All Private	Total	170	100.00
		Ineligible	34	20.00
		Eligible	140	82.35
	Roman Catholic	Total	50	100.00
		Ineligible	1	2.00
		Eligible	40	80.00
	Conservative Christian	Total	50	100.00
		Ineligible	9	18.00
		Eligible	40	80.00
	Lutheran	Total	2	100.00
		Ineligible	0	0.00
		Eligible	2	100.00
	Other Private	Total	80	100.00
		Ineligible	24	30.00
		Eligible	50	62.50
NOTE: Total and eligible school counts are rounded to nearest ten.  Percentages are rounded.  Detail may not add up 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), 2006.

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