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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 From Previous Years, Rescored in 2007, Grade 12 Writing National 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 from previous assessment years, rescored in 2007, grade 12 writing national 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.
W4 W008402 1–6 800 54.50 0.73
W5 W011202 1–6 800 57.58 0.78
W6 W008602 1–6 800 52.38 0.74
W7 W008702 1–6 800 56.31 0.74
W9 W008902 1–6 800 52.05 0.69
W10 W011302 1–6 700 55.71 0.77
W11 W009102 1–6 700 58.69 0.74
W12 W009202 1–6 700 51.64 0.73
W13 W009302 1–6 700 51.23 0.75
W15 W009502 1–6 800 54.16 0.82
W17 W009702 1–6 800 56.06 0.81
W18 W009802 1–6 900 47.63 0.70
W19 W009902 1–6 800 49.38 0.73
W21 W011402 1–6 800 52.87 0.75
W22 W010202 1–6 800 55.43 0.78
W23 W010302 1–6 800 51.36 0.78
W24 W010402 1–6 800 54.80 0.81

Last updated 02 March 2010 (JL)

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