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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 Arts (Visual Arts) Assessment, by Item and Block: 2008

Range of response codes, percent agreement, and Cohen's Kappa or intraclass correlation for the constructed-response items used in scaling, grade 8 arts (visual arts) assessment, by item and block: 2008
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. Item statistics in this table are described on the page Blocks of Items.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2008 Arts (Visual Arts) Assessment.
V3 VC00002 1–3 500 88 0.90
VC00005 1–4 500 84 0.81
VC00007 1–4 400 69 0.81
VC000A4 1–3 500 84 0.87
VC000A6 1–2 500 98 0.90
VC000B4 1–3 500 74 0.70
VC000B6 1–4 500 75 0.70
V4 VD00001 1–2 500 95 0.90
VD00007 1–3 500 77 0.67
VD00008 1–4 500 76 0.69
VD00009 1–4 500 79 0.84
VD000A5 1–3 500 82 0.79
VD000A6 1–3 500 76 0.72
VD000B5 1–3 500 84 0.86
VD000B6 1–2 500 87 0.75
V5 VE00001 1–2 500 86 0.71
VE00002 1–4 500 82 0.77
VE00303 1–3 500 76 0.67
VE00004 1–3 500 81 0.76
VE00008 1–3 400 80 0.83
VE00009 1–5 500 84 0.88
VE00010 1–3 400 86 0.82
V6 VF00001 1–3 500 83 0.79
VF00004 1–3 500 84 0.83
VF000A6 1–4 500 83 0.83
VF000A7 1–3 400 92 0.93
VF000B6 1–4 500 80 0.82
VF000B7 1–2 500 91 0.79
VF000B8 1–4 500 81 0.86
VF000C6 1–4 500 79 0.79
VF000C7 1–3 500 88 0.89

Last updated 01 November 2011 (JL)
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