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 8 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 8 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	P042171	1-3	700	81	†	0.82
	P042174	1-3	700	79	†	0.49
	P042177	1-3	700	80	†	0.82
	P042181	1-3	800	77	†	0.75
	P042184	1-3	700	77	†	0.71
C5	P040903	1-3	700	60	†	0.55
	P040906	1-3	700	87	†	0.84
	P040910	1-3	700	76	†	0.66
	P040913	1-3	700	90	†	0.90
C7	P041102	1-3	700	85	†	0.83
	P041106	1-4	700	69	†	0.56
	P041111	1-3	800	76	†	0.66
	P041116	1-3	800	69	†	0.58
C8	P041202	1-3	800	74	†	0.75
	P041205	1-3	800	79	†	0.64
	P041213	1-4	800	71	†	0.76
C9	P041307	1-4	700	82	†	0.85
	P041309	1-3	700	84	†	0.84
	P041315	1-3	800	81	†	0.80
C10	P042152	1-3	700	91	†	0.91
	P042155	1-4	800	70	†	0.79
	P042158	1-3	700	86	†	0.81
	P042162	1-3	700	79	†	0.77

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