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NAEP Analysis and Scaling → Initial Activities → Constructed-Response Interrater Reliability → Range of Response Codes, Percent Exact Agreement, and Cohen's Kappa or Intraclass Correlation for the Constructed-Response Items Used in Scaling, by Block and Item, Grade 8 Science Combined National and State Main Assessment: 2005
Range of response codes, percentage exact agreement, and Cohen's Kappa or intraclass correlation for the constructed-response items used in scaling, by block and item, grade 8 science combined national and state main assessment: 2005
Block Item Range of response codes Sample size Percent exact agreement Cohen's Kappa Intraclass correlation
B3 K040601 1–3 900 98 0.97
K040603 1–3 900 94 0.93
K040604 1–3 900 88 0.85
K040605 1–3 800 89 0.89
K040606 1–4 800 90 0.91
K040607 1–4 1,000 91 0.95
K040608 1–4 1,000 89 0.95
K040609 1–4 1,000 96 0.98
K040610 1–4 1,000 93 0.96
B5 K040801 1–3 1,000 97 0.95
K040802 1–3 1,000 99 0.93
K040803 1–3 800 96 0.95
K040804 1–3 700 93 0.91
K040805 1–3 600 94 0.90
K040806 1–2 600 87 0.60
K040808 1–3 800 97 0.98
K040809 1–3 800 93 0.95
B6 K031301 1–4 1,100 97 0.82
K031302 1–3 1,100 87 0.73
K031305 1–3 1,000 92 0.74
K031306 1–2 1,000 97 0.70
K031307 1–3 900 92 0.85
K031308 1–3 900 95 0.72
K031309 1–4 1,100 97 0.89
B7 K097901 1–3 1,200 92 0.87
K098501 1–3 1,400 93 0.93
K101201 1–3 1,200 86 0.59
K102001 1–4 1,300 81 0.82
K102301 1–3 1,400 96 0.96
B8 K041306 1–3 1,500 85 0.88
K041307 1–3 1,500 85 0.80
K041401 1–3 1,400 88 0.86
K041402 1–3 1,400 93 0.87
K041403 1–3 1,400 91 0.84
B10 K092601 1–3 900 89 0.84
K095801 1–2 900 92 0.78
K095901 1–3 1,000 94 0.92
K096101 1–3 1,000 92 0.87
K099001 1–3 1,000 92 0.88
B12 K047201 1–4 1,000 87 0.93
K047301 1–3 900 91 0.89
K047401 1–3 1,000 94 0.93
K047901 1–3 900 88 0.90
K048001 1–3 1,000 95 0.89
B13 K048601 1–3 1,000 95 0.94
K048901 1–3 1,000 95 0.96
K049301 1–3 1,000 99 0.96
K049401 1–3 900 90 0.81
K049402 1–3 900 84 0.85
K049403 1–3 900 85 0.76
K049404 1–4 900 78 0.67
B14 K035601 1–3 900 90 0.86
K035801 1–3 1,000 91 0.93
K035901 1–3 900 92 0.90
K036101 1–3 900 87 0.84
K036301 1–3 900 93 0.94
K036401 1–3 1,000 94 0.91
K036402 1–3 900 88 0.84
K036403 1–3 900 90 0.82
K036404 1–3 900 89 0.70
K036801 1–3 800 94 0.93
B15 K037301 1–3 900 95 0.95
K037401 1–3 700 89 0.80
K037601 1–3 900 86 0.86
K037701 1–4 1,000 99 0.98
K037703 1–3 900 88 0.85
K038101 1–2 900 97 0.87
K038201 1–3 900 91 0.74
K038301 1–5 800 86 0.90
B20 K092801 1–3 1,000 96 0.94
K093701 1–3 800 95 0.93
K093901 1–3 900 88 0.88
K094901 1–3 900 91 0.78
K095401 1–3 900 94 0.84
K097001 1–3 900 89 0.82
S9 K060301 1–3 1,400 94 0.92
K063403 1–3 1,400 87 0.81
K063404 1–3 1,500 93 0.91
K063405 1–4 1,500 99 0.99
K063406 1–3 1,500 85 0.84
K063407 1–3 1,500 90 0.91
K063410 1–4 1,500 86 0.91
S15 K063901 1–3 1,000 98 0.97
K064101 1–4 900 97 0.96
K064501 1–4 900 82 0.87
K064801 1–3 900 93 0.89
K064802 1–3 900 93 0.93
K064803 1–3 900 94 0.94
S16 K065601 1–4 900 93 0.96
K065901 1–4 900 84 0.85
K065902 1–3 900 93 0.92
K066101 1–3 900 96 0.96
S17 K066701 1–3 900 88 0.86
K066901 1–2 900 99 0.95
K067201 1–3 1,000 94 0.94
K067401 1–3 900 89 0.90
K067701 1–4 900 96 0.98
K067901 1–3 900 92 0.92
S18 K063001 1–3 800 90 0.92
K068801 1–3 900 82 0.82
K069101 1–3 1,000 94 0.93
K069501 1–3 900 90 0.76
K069801 1–4 900 90 0.88
K069901 1–4 900 96 0.97
† The intraclass correlation is not reported for dichotomously scored items; Cohen's Kappa is not reported for polytomously scored items.
NOTE: Cohen's Kappa is a measure of reliability that is appropriate for items that are dichotomously scored. The intraclass correlation coefficient is most appropriate for items with more than two categories.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2005 Science Assessment.

Last updated 06 April 2009 (GF)

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