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 2010, Grade 12 Civics National Assessment, by Item and Block: 2010

NAEP Technical DocumentationRange of response codes, percent agreement, and Cohen's Kappa or intraclass correlation for the constructed-response items from previous years, rescored in 2010, grade 12 civics national assessment, by item and block: 2010

Block	Item	Range of response codes	Sample size	Percent agreement	Cohen’s Kappa	Intraclass correlation
† 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), 2010 Civics Assessment.
C3	P041503	1-3	700	71	†	0.73
	P041505	1-3	700	69	†	0.68
	P041509	1-4	700	66	†	0.68
	P041511	1-3	700	74	†	0.76
C4	P041606	1-3	800	71	†	0.69
	P041613	1-3	700	95	†	0.95
	P041614	1-3	700	85	†	0.81
C6	P041804	1-3	800	69	†	0.69
	P041806	1-3	700	75	†	0.74
	P041815	1-3	700	79	†	0.74
C8	P042191	1-3	800	84	†	0.85
	P042195	1-4	800	77	†	0.86
	P042199	1-3	800	75	†	0.63
	P042203	1-3	800	72	†	0.71
C9	P042210	1-3	700	86	†	0.89
	P042214	1-4	700	66	†	0.79
	P042218	1-4	700	95	†	0.98
	P042222	1-3	700	76	†	0.77
C10	P041404	1-4	700	64	†	0.58
	P041408	1-3	700	72	†	0.76
	P041412	1-3	700	72	†	0.60
	P041413	1-3	700	77	†	0.66

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