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 4 Geography 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 4 geography 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 Geography Assessment.
G3	G027201	1-2	700	99	0.98	†
	G027301	1-2	700	98	0.95	†
	G027401	1-2	700	97	0.92	†
	G027501	1-2	700	98	0.96	†
	G027601	1-2	700	98	0.96	†
	G027701	1-2	800	97	0.94	†
	G027801	1-2	700	94	0.87	†
	G028201	1-4	700	77	†	0.88
	G028401	1-3	700	74	†	0.73
	G028501	1-3	700	89	†	0.84
	G028701	1-4	700	85	†	0.89
G4	G008001	1-3	700	98	†	0.98
	G008201	1-4	700	89	†	0.91
	G008503	1-3	700	90	†	0.91
	G008701	1-3	700	92	†	0.92
	G009001	1-4	700	80	†	0.88
G5	G009201	1-3	700	81	†	0.79
	G009402	1-3	800	92	†	0.87
	G009403	1-3	700	92	†	0.81
	G009601	1-4	700	87	†	0.93
G6	G029301	1-2	700	96	0.92	†
	G029401	1-2	700	98	0.93	†
	G029501	1-2	700	97	0.94	†
	G029601	1-2	700	100	0.98	†
	G029701	1-2	700	97	0.89	†
	G030101	1-3	700	74	†	0.61
	G030501	1-4	700	75	†	0.83
	G030801	1-2	700	98	0.96	†
	G030901	1-2	700	98	0.96	†
	G031001	1-2	700	98	0.96	†
	G031101	1-2	700	99	0.97	†
	G031401	1-4	700	90	†	0.94

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