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NAEP Analysis and Scaling → Initial Activities → Constructed-Response Interrater Reliability → Range of Response Codes, Percent Agreement, and Cohen's Kappa or Intraclass Correlation for the Constructed-Response Items Used in Scaling, Grade 8 Writing Combined National and State Main Assessment, by Item and Block: 2007

Range of response codes, percent agreement, and Cohen's Kappa or intraclass correlation for the constructed-response items used in scaling, grade 8 writing combined national and state main assessment, by item and block: 2007
Block Item Range of response codes Sample size Percent agreement Cohen’s Kappa Intraclass correlation
— Not available. 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), 2007 Writing Assessment.
W3 W006002 1–6 700 77.94 0.88
W4 W011502 1–6 700 68.09 0.84
W5 W006202 1–6 700 69.01 0.87
W6 W006302 1–6 700 64.29 0.79
W7 W006402 1–6 700 84.38 0.93
W8 W006502 1–6 700 74.30 0.88
W9 W010902 1–6 700 73.31 0.79
W11 W006802 1–6 700 67.64 0.85
W12 W006902 1–6 700 74.68 0.84
W13 W007002 1–6 700 68.72 0.81
W14 W007102 1–6 700 72.53 0.84
W15 W011002 1–6 700 68.79 0.84
W16 W011602 1–6 700 74.78 0.83
W17 W007402 1–6 700 67.40 0.86
W19 W011102 1–6 700 71.89 0.84
W20 W011702 1–6 700 67.69 0.82
W21 W007802 1–6 700 66.19 0.82
W22 W007902 1–6 700 71.51 0.85
W23 W008002 1–6 700 77.86 0.87
W24 W008102 1–6 700 70.91 0.86

Last updated 03 May 2010 (JL)

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