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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 From 1994 That Were Rescored in 2001, by Block and Item, Grade 12 Geography Assessment: 2001
Range of response codes, percentage exact agreement, and Cohen's Kappa or intraclass correlation for the constructed-response items from 1994 that were rescored in 2001, by block and item, grade 12 geography assessment: 2001
Block Item Range of response codes Sample size Percentage exact agreement Cohen's Kappa Intraclass correlation
G3 G020701 1–3 600 88 0.90
G021001 1–4 600 79 0.81
G021401 1–4 600 85 0.94
G021601 1–4 600 82 0.79
G021602 1–3 600 94 0.93
G5 G016201 1–3 600 98 0.98
G016302 1–3 600 96 0.95
G016401 1–3 600 94 0.95
G016502 1–3 600 92 0.93
G016701 1–3 600 91 0.92
G017101 1–4 600 80 0.86
G8 G025001 1–3 600 88 0.85
G025101 1–4 600 75 0.84
G025202 1–3 600 83 0.79
G025301 1–4 600 92 0.86
G025601 1–3 600 93 0.84
G025801 1–3 600 90 0.87
G9 G026101 1–3 600 94 0.92
G026204 1–3 600 91 0.94
G026301 1–4 600 90 0.84
G026502 1–3 600 97 0.97
G026601 1–3 600 96 0.95
G026901 1–3 600 92 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), 2001 Geography Assessment.

Last updated 11 July 2008 (KL)

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