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NAEP Sample Design → Sample Design for the 2000 Assessment → National Main Assessment Sample Design in 2000 → Participation Results for the 2000 National Main Assessment → School Participation in the 2000 National Main Assessment

NAEP Technical DocumentationSchool Participation in the 2000 National Main Assessment

The tables below shows a detailed breakdown of school participation status for the 2000 national main assessment; participation rates are also shown for previous national main assessments.

Summary of school participation experiences by grade and school type, unweighted, national main assessment: 2000

Participation experience	Grade 4		Grade 8		Grade 12
	Number of public schools	Number of private schools	Number of public schools	Number of private schools	Number of public schools	Number of private schools
Total original sample	580	820	480	720	320	620
Out-of-scope school1	20	60	30	90	20	120
District refused	20	0	10	0	10	0
District refused for this school only	30	§	30	§	20	§
School refused	30	130	40	120	30	140
Cooperating	480	630	380	500	240	360
Cooperating replacements for refusals (2000)	20	30	10	30	10	30
Total participating schools	500	650	400	530	250	390
§ Fewer than 10 schools. 1 School did not have eligible grade; had eligible grade but no enrolled students; closed school; was not a regular school. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000.

Cooperation rate of schools before the addition of substitute schools to the sample, by grade and school type, unweighted, national main assessment: Various years, 1992–2000

Cooperation rate	Grade 4		Grade 8		Grade 12
	Percent of public schools	Percent of private schools	Percent of public schools	Percent of private schools	Percent of public schools	Percent of private schools
Cooperation rate before substitution (2000)	86	82	84	80	81	72
Cooperation rate before substitution (1998)	81		81		75
Cooperation rate before substitution (1996)	86		83		79
Cooperation rate before substitution (1994)	86		86		79
Cooperation rate before substitution (1992)	86		85		81
NOTE: The figures for 1992–98 are for public and private schools combined. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), various years, 1992–2000 Assessments.

Cooperation rate of schools before and after the addition of substitute schools to the sample, by grade and school type, unweighted, national main assessment: 2000

Cooperation rate	Grade 4		Grade 8		Grade 12
	Percent of public schools	Percent of private schools	Percent of public schools	Percent of private schools	Percent of public schools	Percent of private schools
Cooperation rate before substitution	86	82	84	80	81	72
Cooperation rate after substitution	89	86	86	84	86	78
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000.

 

The cooperation rates shown in the table above are computed using the counts in the table as follows:

Before substitution rate = (100 × cooperating) / (cooperating + district refused + district refused for this school only + school refused)

For example, grade 4 public: 100 × 500 / (480 + 30 + 30 + 20) = .86

After substitution rate =(100 × total participating schools) / (cooperating + district refused + district refused for this school only + school refused)

For example, grade 4 public: (100 × (496) / (480 + 30 + 30 + 20) = .89

The difference is between these two equations is that the rate after substitution includes cooperating substitutes.

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