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NAEP Sample Design → Sample Design for the 2000 Assessment → National Main Assessment Sample Design in 2000 → Assignment of Sessions to Schools for the 2000 National Main Assessment → Session Assignment Probabilities for Private Schools by Subject, by Sampling Strata, Grade 4 National Main Assessment: 2000

NAEP Technical DocumentationSession assignment probabilities for private schools, by subject area and sampling stratum, grade 4 national main assessment: 2000

Sampling stratum	Mathematics	Science	Reading
Roman Catholic	3,000/7,650	3,000/7,650	1,110/7,650
Lutheran	750/1,650	750/1,650	90/1,650
Conservative Christian	750/1,890	750/1,890	270/1,890
Other religious	750/1,920	750/1,920	270/1,920
Nonsectarian	750/1,740	750/1,740	150/1,740
Independent1	750/1,680	750/1,680	120/1,680
Unknown affiliation	6,750/16,530	6,750/16,530	2,010/16,530
1 A member of the National Association of Independent Schools (NAIS). NOTE: The numeric data above expresses the probability that a type of school (e.g., Roman Catholic) was assigned to the assessment. For example, the probability that a Roman Catholic school was assigned to the national main mathematics assessment was 3,000 / 7,650 = 0.392157. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000.

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