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NAEP Analysis and Scaling → Initial Activities → Constructed-Response Interrater Reliability → 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 Mathematics Combined National and State Main Assessment: 2003
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 mathematics combined national and state main assessment: 2003
Block Item Range of response codes Sample size Percent exact agreement Cohen's Kappa Intraclass correlation
M3 M019901 1–3 1,600 99 0.98
M020101 1–2 1,600 99 0.97
M047301 1–4 1,600 99 0.92
M075401 1–3 1,600 92 0.93
M075601 1–3 1,600 96 0.97
M076001 1–5 1,500 90 0.93
M4 M046001 1–5 1,600 99 0.98
M046601 1–4 1,600 98 0.97
M046801 1–5 1,600 100 0.99
M046901 1–5 1,700 99 0.98
M053001 1–2 1,200 96 0.93
M066601 1–3 1,600 94 0.95
M067201 1–3 1,600 84 0.87
M068003 1–3 1,600 98 0.98
M068005 1–3 1,600 97 0.97
M068006 1–3 1,500 91 0.93
M068008 1–3 1,600 92 0.93
M086301 1–5 1,100 97 0.99
M093601 1–3 1,400 98 0.98
M5 M019701 1–2 1,700 99 0.98
M020001 1–2 1,600 99 0.98
M047901 1–3 1,500 99 0.98
M053101 1–5 1,500 89 0.94
M066301 1–3 1,600 98 0.95
M066501 1–3 1,600 92 0.94
M067901 1–3 1,600 97 0.97
M085701 1–3 1,600 98 0.98
M085901 1–3 1,600 97 0.97
M6 M019801 1–3 1,600 97 0.94
M020201 1–2 1,600 97 0.79
M020301 1–4 1,600 99 0.99
M020401 1–2 1,700 99 0.98
M020501 1–2 1,600 98 0.97
M020801 1–6 1,600 96 0.99
M021201 1–3 1,600 98 0.98
M052201 1–5 1,500 91 0.96
M7 M013031 1–4 1,600 99 0.99
M021101 1–3 1,600 93 0.95
M051301 1–2 1,600 99 0.97
M073401 1–3 1,600 95 0.95
M092001 1–5 1,500 84 0.95
M8 M020901 1–2 1,700 92 0.85
M021001 1–2 1,700 98 0.97
M073601 1–5 1,400 90 0.97
M092401 1–3 1,700 96 0.93
M092601 1–3 1,600 96 0.96
M9 M013131 1–2 1,700 98 0.96
M052401 1–2 1,600 92 0.84
M072901 1–3 1,600 92 0.93
M073501 1–3 1,600 95 0.94
M075301 1–3 1,600 94 0.94
M075801 1–3 1,500 85 0.89
M093801 1–5 1,300 93 0.98
M10 M021301 1–2 1,700 95 0.91
M021302 1–2 1,700 98 0.97
M051201 1–2 1,700 99 0.98
M051601 1–2 1,700 99 0.97
M052101 1–3 1,600 97 0.96
M052901 1–2 1,700 93 0.86
M067501 1–5 1,400 92 0.92
M068201 1–5 1,500 92 0.96
M093501 1–3 1,600 95 0.96
M11 M106301 1–2 1,600 99 0.98
M106901 1–2 1,600 92 0.84
M107501 1–2 1,600 99 0.98
M12 M110201 1–2 1,700 98 0.96
M110501 1–3 1,600 94 0.95
M111801 1–3 1,500 89 0.93
† 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), 2003 Mathematics Assessment.

Last updated 25 March 2009 (GF)

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