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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 13 Reading Long-Term Trend Bridge Study: 2004

NAEP Technical DocumentationRange 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 13 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	100	1.00	†
J	N001904	1 - 2	200	89	0.78	†
L	N002804	1 - 2	200	91	0.79	†
M	N003104	1 - 2	200	88	0.67	†
N	N003704	1 - 2	100	94	0.87	†
O	N004303	1 - 2	100	95	0.89	†
P	N004605	1 - 2	200	95	0.87	†
R21	N021203	1 - 5	200	79	†	0.88
R22	N023802	1 - 4	200	74	†	0.73
R23	N021803	1 - 4	200	87	†	0.91
† 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.

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