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NAEP Sample Design → NAEP 2004 Long-Term Trend Sample Design → Sampling of Schools and Students → Long-Term Trend School and Student Response History

Long-Term Trend School and Student Response History

The NCES statistical standards state that weighted school response rates below 85 percent require a nonresponse bias analysis. This was done for NAEP 2004 long-term trend (NAEP Nonresponse Bias Analysis long-term trend report 2004, 202Kb). The unweighted and weighted school response rates are given for the Age 9 study in the two tables below. In some cases, substitute cases that were selected as matched pairs during the sampling process, were used to supplement the sample of schools.

 

Unweighted school response rates, age 9 long-term trend assessment: By school type and NAEP region, 2004
Student group Eligible school sample Nonresponding originally sampled schools Responding originally sampled schools Unweighted response rate Recruited cooperating substitutes
  Total school sample 670 130 540 80.6 40
Total public 410 50 360 88.0 20
NAEP region NE 80 10 70 93.5 #
NAEP region SE 90 # 90 97.8 0
NAEP region C 110 20 90 81.8 10
NAEP region W 130 20 110 83.2 10
Total private 270 80 190 69.3 30
Roman Catholic 110 20 100 85.6 10
Lutheran 20 # 20 80.0 #
ConservativeChristian 40 20 30 61.4 10
Other private 90 50 50 51.1 10
# Rounds to zero.
NOTE: Sample sizes are rounded to nearest 10. Response rates calculated using unrounded numbers.Detail may not sum to totals because of rounding.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004 Long-Term Trend Assessment.

Weighted school response rates, age 9 long-term trend assessment: By school type and NAEP region, 2004
Student group Eligible school sample Nonresponding originally sampled schools Responding originally sampled schools Weighted response rate Recruited cooperating substitutes
  Total school sample 69,500 13,600 55,900 80.5 3,700
Total public 50,400 6,800 43,600 86.5 1,900
NAEP region NE 9,700 570 9,100 94.1 340
NAEP region SE 10,800 250 10,500 97.7 0
NAEP region C 13,900 2,800 11,000 79.6 720
NAEP region W 16,200 3,200 13,000 80.3 790
Total private 19,000 6,800 12,300 64.6 1,900
Roman Catholic 6,000 850 5,200 85.9 480
Lutheran 1,600 370 1,200 76.7 130
Conservative Christian 3,000 1,200 1,800 60.7 520
Other private 8,400 4,300 4,000 48.3 740
NOTE: Sample sizes are rounded to nearest ten or hundred. Response rates calculated using unrounded numbers. Detail may not sum to totals because of rounding.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004 Long-Term Trend Assessment.


The unweighted and weighted response rates for the Age 13 study are given in the tables below.

Unweighted school response rates, age 13 long-term trend assessment: By school type and NAEP region, 2004
Student group Eligible school sample Nonresponding originally sampled schools Responding originally sampled schools Unweighted response rate Recruited cooperating substitutes
   Total school sample 590 140 460 77.2 40
Total public 330 60 270 83.1 10
NAEP region NE 60 10 50 86.4 #
NAEP region SE 80 # 80 97.4 0
NAEP region C 70 20 50 74.7 #
NAEP region W 120 30 90 77.1 10
Total private 270 80 190 70.2 20
Roman Catholic 120 20 100 84.8 10
Lutheran 20 # 20 89.5 #
Conservative Christian 40 10 30 73.2 #
Other private 90 50 40 45.6 10
# Rounds to zero.
NOTE: Sample sizes are rounded to nearest  ten. Response rates calculated using unrounded numbers. Detail may not sum to totals because of rounding.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004 Long-Term Trend Assessment.

Weighted school response rates, age 13 long-term trend assessment: By school type and NAEP region, 2004
Student group Eligible school sample Non-responding originally sampled schools Responding originally sampled schools Weighted response rate Recruited cooperating substitutes
  Total school sample 52,700 13,000 39,800 75.4 2,800
Total public 35,200 7,500 27,700 78.8 1,300
NAEP region NE 6,800 560 6,200 91.7 240
NAEP region SE 6,900 180 6,700 97.4 0
NAEP region C 8,900 2,700 6,300 70.4 680
NAEP region W 12,600 4,100 8,500 67.6 380
Total private 17,600 5,500 12,100 68.7 1,500
Roman Catholic 5,800 800 5,000 86.1 460
Lutheran 1,200 100 1,100 92.3 100
Conservative Christian 3,200 590 2,700 82.0 100
Other private 7,300 4,000 3,300 45.1 810
NOTE: Sample sizes are rounded to nearest ten or hundred. Response rates calculated using unrounded numbers. Detail may not sum to totals because of rounding.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004 Long-Term Trend Assessment.


The unweighted and weighted school response rates for the Age 17 study are given in the tables below.

Unweighted school response rates, age 17 long-term trend assessment: By school type and NAEP region, 2004
Student group Eligible school sample Nonresponding originally sampled schools Responding originally sampled schools Unweighted response rate Recruited cooperating substitutes
  Total school sample 560 170 390 69.6 30
Total public 390 80 310 78.5 20
NAEP region NE 70 10 50 79.1 #
NAEP region SE 80 # 80 97.6 0
NAEP region C 100 20 80 76.5 10
NAEP region W 140 50 100 68.5 10
Total private 170 90 90 49.7 10
Roman Catholic 50 20 30 62.0 #
Lutheran # # # 75.0 0
Conservative Christian 40 20 30 63.4 #
Unknown # # 0 0.0 0
Other private 80 50 30 34.2 10
# Rounds to zero.
NOTE: Sample sizes are rounded to nearest 10. Response rates calculated using unrounded numbers. Detail may not sum to totals because of rounding.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004 Long-Term Trend Assessment.

Weighted school response rates, age 17 long-term trend assessment: By school type and NAEP region, 2004
Student group Eligible school sample Nonresponding originally sampled schools Responding originally sampled schools Unweighted response rate Recruited cooperating substitutes
  Total school sample 26,700 7,400 19,300 72.2 960
Total public 20,200 4,200 16,100 79.4 750
NAEP region NE 3,300 700 2,600 79.3 160
NAEP region SE 3,700 80 3,600 97.8 0
NAEP region C 5,400 1,300 4,100 75.5 330
NAEP region W 7,800 2,100 5,700 73.2 260
Total private 6,400 # 3,200 49.7 210
Roman Catholic 1,100 410 680 62.5 20
Lutheran 110 30 80 73.6 0
Conservative Christian 2,200 660 1,500 69.9 30
Unknown 380 380 0.00 0 0
Other private 2,700 1,800 910.00 34.1 160
# Rounds to zero.
NOTE: Sample sizes are rounded to nearest ten or hundred. Response rates calculated using unrounded numbers. Detail may not sum to totals because of rounding.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004 Long-Term Trend Assessment.

In every NAEP survey, some of the sampled students are not assessed:

  • withdrawn students,
  • SD excluded students,
  • LEP excluded students, or
  • students absent from both the original session and the make-up session (not excluded but not assessed).

Withdrawn students are those who have left the school before the original assessment. Excluded students are those who cannot be assessed even with an accommodation because they are disabled (SD) or have limited English proficiency (LEP). Other students who were absent for the initial session are assessed in the makeup session. The last category includes students who were not excluded, but were not assessed, either due to absence from both sessions or because of a refusal to participate. Assessed students are also classified as assessed without an accommodation or assessed with an accommodation. The latter group can be divided into SD students assessed with an accommodation, LEP students assessed with an accommodation, or students who are both SD and LEP and accommodated (students neither SD nor LEP can only be assessed without an accommodation). Note that some SD and LEP students are assessed without accommodations.

The weighted response rates utilize the student base weights, and indicate the weighted percentage of assessed students as a percentage of all students to be assessed. The exclusion rates, in contrast, provide the weighted percentage of excluded SD or LEP students as a percentage of all absent, assessed, and excluded students.

Weighted student response and exclusion rates, by school and session type, age 9 long-term trend study: 2004
School type Session Weighted eligible student response rate1 Weighted percent of all students who are SD and excluded2 Weighted percent of all students who are LEP and excluded2
All Reading Operational 94.3 3.7 2.0
Mathematics Operational 93.9 2.2 1.0
Reading Bridge 94.5 6.6 2.3
Mathematics Bridge 94.3 5.6 2.2
Public Reading Operational 94.4 4.0 2.2
Mathematics Operational 93.9 2.4 1.1
Reading Bridge 94.5 7.1 2.5
Mathematics Bridge 94.2 6.2 2.5
Private Reading Operational 93.5 0.4 0.1
Mathematics Operational 93.3 0.6 0.2
Reading Bridge 95.4 2.8 0.0
Mathematics Bridge 95.4 0.4 0.2
1 Denominator is the total eligible sample less excluded cases.
2 Denominator is the total eligible sample.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004 Long-Term Trend Assessment.

Weighted student response and exclusion rates, by school and session type, age 13 long-term trend study: 2004
School type Session Weighted eligible student response rate1 Weighted percent of all students who are SD and excluded2 Weighted percent of all students who are LEP and excluded2
All Reading Operational 92.4 4.4 1.0
Mathematics Operational 91.8 2.7 0.8
Reading Bridge 92.4 7.5 1.8
Mathematics Bridge 92.1 7.2 1.5
Public Reading Operational 92.2 4.9 1.0
Mathematics Operational 91.6 2.9 0.9
Reading Bridge 92.4 8.1 1.9
Mathematics Bridge 92.0 7.8 1.7
Private Reading Operational 94.1 0.6 0.1
Mathematics Operational 93.6 0.5 0.2
Reading Bridge 93.7 0.6 0.2
Mathematics Bridge 93.9 0.4 0.0
1 Denominator is the total eligible sample less excluded cases.
2 Denominator is the total eligible sample.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004 Long-Term Trend Assessment.

Weighted student response and exclusion rates, by school and session type, age 17 long-term trend study: 2004
School type Session Weighted eligible student response rate1 Weighted percent of all students who are SD and excluded2 Weighted percent of all students who are LEP and excluded2
All Reading Operational 76.0 3.1 1.1
Mathematics Operational 75.4 2.8 0.7
Reading Bridge 75.5 6.1 1.0
Mathematics Bridge 76.4 6.2 1.6
Public Reading Operational 75.5 3.4 1.2
Mathematics Operational 74.9 3.0 0.8
Reading Bridge 75.2 6.6 1.0
Mathematics Bridge 76.1 6.7 1.7
Private Reading Operational 84.5 0.5 0.4
Mathematics Operational 84.7 0.5 0.0
Reading Bridge 80.0 0.8 0.2
Mathematics Bridge 81.9 1.5 0.6
1 Denominator is the total eligible sample less excluded cases.
2 Denominator is the total eligible sample.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004 Long-Term Trend Assessment.

Last updated 30 July 2009 (EH)

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