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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 From Previous Years, Rescored in 2005, by Block and Item, Grade 12 Mathematics National Main Assessment: 2005

NAEP Technical DocumentationRange of response codes, percentage exact agreement, and Cohen's Kappa or intraclass correlation for the constructed-response items from previous years, rescored in 2005, by block and item, grade 12 mathematics national main assessment: 2005

Block	Item	Range of response codes	Sample size	Percent exact agreement	Cohen's Kappa	Intraclass correlation
M3	M095301	1–3	500	90	†	0.92
	M095001	1–3	400	90	†	0.91
	M056801	1–2	500	99	0.97	†
	M076601	1–3	700	95	†	0.96
	M095401	1–4	400	94	†	0.97
M4	M071602	1–3	2,200	85	†	0.84
	M071603	1–3	2,100	88	†	0.88
	M071604	1–3	2,100	90	†	0.90
	M071502	1–3	400	92	†	0.94
	M058901	1–3	500	98	†	0.96
	M057001	1–2	400	99	0.98	†
	M071801	1–5	500	95	†	0.98
M5	M094201	1–4	500	88	†	0.95
	M094301	1–3	1,600	93	†	0.94
	M021401	1–2	400	100	0.99	†
	M021501	1–2	700	99	0.97	†
	M021502	1–2	400	100	0.99	†
	M071701	1–3	700	91	†	0.90
M6	M021801	1–2	400	98	0.95	†
	M132201	1–4	400	92	†	0.96
	M071001	1–3	600	92	†	0.93
M7	M076101	1–3	800	94	†	0.91
	M073801	1–3	500	96	†	0.96
	M073901	1–3	600	96	†	0.97
	M076901	1–3	500	99	†	0.98
	M074101	1–5	700	90	†	0.96
M8	M021001	1–2	400	99	0.97	†
	M020901	1–2	1,500	89	0.76	†
	M092401	1–3	400	96	†	0.95
	M092601	1–3	400	89	†	0.90
	M071201	1–3	500	88	†	0.87
	M021601	1–4	500	94	†	0.90
	M021602	1–2	400	97	0.85	†
	M071301	1–3	500	98	†	0.97
	M076701	1–3	1,100	97	†	0.97
	M071401	1–5	500	97	†	0.98
M9	M052401	1–2	400	86	0.71	†
	M013131	1–2	900	96	0.92	†
	M092301	1–3	1,800	90	†	0.92
	M074001	1–3	400	94	†	0.95
	M071101	1–3	200	98	†	0.99
	M011931	1–2	500	99	0.96	†
	M012031	1–3	400	99	†	1.00
	M076801	1–3	500	97	†	0.97
	M057101	1–2	400	99	0.92	†
	M092901	1–5	800	91	†	0.97
M10	M070801	1–3	500	90	†	0.92
	M021701	1–2	400	98	0.97	†
	M021702	1–2	400	98	0.95	†
	M059702	1–3	700	88	†	0.83
	M053301	1–2	700	94	0.77	†
	M059801	1–2	400	98	0.87	†
	M053401	1–5	400	84	†	0.95
M11	M126001	1–2	400	99	0.99	†
	M131201	1–2	500	98	0.95	†
	M129001	1–5	400	90	†	0.95
M12	M134601	1–2	400	98	0.94	†
	M133801	1–4	900	95	†	0.97
	M135501	1–5	400	88	†	0.97
† 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), 2005 Mathematics Assessment.

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