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NAEP Analysis and Scaling → Initial Activities → Constructed-Response Interrater Reliability → Range of Response Codes, Percent Exact Agreement, and Cohen's Kappa or Intraclass Correlation for the Constructed-Response Items Used in Scaling, by Block and Item, Age 17 Reading Long-Term Trend Bridge Study: 2004
Range of response codes, percent exact agreement, and Cohen's Kappa or intraclass correlation for the constructed-response items used in scaling, by block and item, age 17 reading long-term trend bridge study: 2004
Block Item Range of response codes Sample size Percent exact agreement Cohen's Kappa Intraclass correlation
H N001527 1–2 200 98 0.93
J N001904 1–2 200 96 0.89
L N002804 1–2 200 94 0.85
M N003104 1–2 200 90 0.76
N N003704 1–2 200 95 0.90
O N004303 1–2 100 92 0.83
P N004605 1–2 200 97 0.90
Q N015905 1–2 100 93 0.85
R21 N021203 1–5 200 89 0.92
R22 N023802 1–4 200 88 0.83
R23 N021803 1–4 200 93 0.95
† 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), 2004 Reading Long-Term Trend Assessment.

Last updated 06 April 2009 (GF)

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