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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 2006, Grade 8 U.S. History Assessment, by Item and Block: 2006
Range of response codes, percent agreement, and Cohen's Kappa or intraclass correlation for the constructed-response items from previous years rescored in 2006, grade 8 U.S. history assessment, by item and block: 2006
Block Item Range of response codes Sample size Percent exact agreement Cohen's Kappa Intraclass correlation
H3 H035801 1–3 700 84.38 0.62
H035901 1–3 800 90.33 0.88
H035902 1–3 700 79.65 0.72
H036101 1–3 700 87.08 0.87
H036402 1–4 700 73.47 0.84
H4 H059001 1–3 800 85.96 0.88
H059201 1–3 700 73.48 0.76
H059701 1–3 700 86.67 0.89
H059801 1–3 700 84.92 0.87
H060201 1–3 700 80.63 0.80
H5 H038103 1–4 700 82.82 0.60
H038301 1–3 700 85.73 0.88
H038601 1–3 800 82.60 0.66
H038702 1–3 700 85.71 0.79
H039001 1–3 800 95.08 0.94
H7 H057501 1–3 800 94.64 0.92
H057701 1–3 800 82.68 0.76
H057801 1–3 700 77.91 0.81
H058601 1–3 800 80.29 0.80
H058701 1–3 700 86.25 0.85
H8 H034101 1–4 800 85.19 0.71
H034401 1–3 800 89.58 0.84
H034501 1–2 800 99.76 0.99
H034702 1–3 800 90.05 0.82
H035001 1–3 800 75.78 0.78
H035101 1–3 800 76.85 0.71
H9 H061501 1–3 800 88.37 0.83
H061601 1–3 800 90.00 0.86
H061801 1–3 800 96.00 0.93
H10 H042201 1–3 700 94.46 0.83
H042801 1–4 800 88.65 0.83
H042902 1–3 700 88.20 0.90
H043001 1–3 800 78.50 0.66
H043101 1–3 700 91.85 0.90
† 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), 2006 U.S. History Assessment.

Last updated 19 November 2009 (GF)

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