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 Geography Combined National and State Main 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 geography combined national and state main 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	G020701	1-3	700	78	†	0.76
	G021001	1-4	700	77	†	0.77
	G021401	1-4	700	80	†	0.91
	G021601	1-4	700	81	†	0.75
	G021602	1-3	700	92	†	0.89
G4	G037501	1-2	700	99	0.98	†
	G037601	1-2	700	100	1.00	†
	G037701	1-2	700	99	0.99	†
	G037801	1-2	700	99	0.99	†
	G037901	1-2	700	99	0.98	†
	G038101	1-3	700	61	†	0.42
	G038401	1-3	700	75	†	0.73
	G038801	1-4	700	81	†	0.87
	G039201	1-3	700	86	†	0.76
G6	G034801	1-4	700	94	†	0.96
	G035001	1-4	700	70	†	0.73
	G035301	1-4	700	79	†	0.87
	G035501	1-4	700	71	†	0.81
G8	G025001	1-3	700	83	†	0.76
	G025101	1-4	700	61	†	0.69
	G025202	1-3	700	81	†	0.75
	G025301	1-4	700	86	†	0.60
	G025601	1-3	700	88	†	0.73
	G025801	1-3	700	82	†	0.75
G9	G026101	1-3	700	90	†	0.89
	G026204	1-3	700	92	†	0.94
	G026301	1-4	800	77	†	0.60
	G026502	1-3	800	95	†	0.95
	G026503	1-4	700	91	†	0.93
	G026601	1-3	700	97	†	0.95
	G026901	1-3	700	94	†	0.94

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