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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 12 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 12 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
H4 H045901 1–4 700 75.40 0.75
H046001 1–2 800 99.22 0.98
H046101 1–3 700 95.69 0.95
H046301 1–3 700 83.15 0.79
H5 H062001 1–3 800 74.00 0.68
H062201 1–3 800 81.28 0.77
H063101 1–3 700 85.25 0.83
H063401 1–4 800 78.00 0.86
H063601 1–3 700 77.04 0.74
H6 H048901 1–3 700 92.41 0.95
H049401 1–4 800 85.07 0.40
H049503 1–3 800 76.72 0.60
H049601 1–4 700 81.95 0.77
H049701 1–3 800 94.73 0.96
H8 H051301 1–3 800 68.92 0.59
H052301 1–4 800 50.00 0.58
H052501 1–3 700 85.10 0.89
H052701 1–3 800 82.02 0.84
H9 H061501 1–3 800 76.79 0.79
H061601 1–3 800 91.50 0.88
H061801 1–3 700 90.07 0.86
H10 H042201 1–3 700 92.08 0.75
H042801 1–4 800 85.86 0.89
H042902 1–3 800 89.63 0.91
H043001 1–3 800 72.98 0.77
H043101 1–3 800 88.76 0.87
H11 H063801 1–3 800 74.84 0.65
H064001 1–3 800 78.39 0.73
H064101 1–3 800 74.18 0.76
H064401 1–4 700 67.68 0.74
H064901 1–3 800 78.88 0.80
H065101 1–3 800 73.18 0.66
H065201 1–3 800 66.87 0.65
H065301 1–3 700 73.81 0.74
H065401 1–4 700 67.47 0.77
† 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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