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 2009, Grade 12 Mathematics National Main Assessment, by Item and Block: 2009

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 2009, grade 12 mathematics national main assessment, by item and block: 2009

Block1	Item	Range of response codes	Sample size	Percent agreement	Cohen’s Kappa	Intraclass correlation
1 Common blocks M13–M22 were previously named M3–M12 in 2005. — Not available. 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), 2009 Mathematics Assessment.
M13	M056801	1–2	600	99	0.97	—
	M076601	1–3	600	98	—	0.99
	M095001	1–3	600	93	—	0.94
	M095301	1–3	600	89	—	0.92
	M095401	1–4	500	96	—	0.98
M14	M057001	1–2	600	100	1.00	—
	M058901	1–3	600	98	—	0.97
	M071502	1–3	600	96	—	0.96
	M071602	1–3	600	90	—	0.91
	M071603	1–3	500	91	—	0.90
	M071604	1–3	500	91	—	0.92
	M071801	1–5	600	93	—	0.97
M15	M021401	1–2	600	99	0.98	—
	M021501	1–2	600	98	0.96	—
	M021502	1–2	600	100	0.98	—
	M071701	1–3	500	97	—	0.95
	M094201	1–4	600	87	—	0.94
	M094301	1–3	600	95	—	0.95
	M094701	1–5	600	80	—	0.90
M16	M021801	1–2	600	99	0.96	—
	M071001	1–3	600	93	—	0.94
	M132201	1–4	600	93	—	0.95
M17	M073801	1–3	600	98	—	0.99
	M073901	1–3	600	98	—	0.99
	M074101	1–5	600	91	—	0.96
	M076101	1–3	700	97	—	0.95
	M076901	1–3	600	99	—	0.95
M18	M020901	1–2	600	91	0.78	—
	M021001	1–2	600	100	0.99	—
	M021601	1–4	600	97	—	0.83
	M021602	1–2	600	98	0.85	—
	M071201	1–3	600	95	—	0.96
	M071301	1–3	600	98	—	0.97
	M071401	1–5	500	98	—	0.99
	M076701	1–3	600	98	—	0.96
	M092401	1–3	600	96	—	0.95
	M092601	1–3	600	96	—	0.97
M19	M011931	1–2	500	100	0.98	—
	M012031	1–3	500	99	—	0.99
	M013131	1–2	600	98	0.96	—
	M052401	1–2	600	91	0.81	—
	M057101	1–2	500	99	0.94	—
	M071101	1–3	600	98	—	0.99
	M074001	1–3	600	96	—	0.97
	M076801	1–3	600	96	—	0.95
	M092301	1–3	600	90	—	0.91
	M092901	1–5	500	94	—	0.97
M20	M021701	1–2	600	99	0.99	—
	M021702	1–2	600	98	0.95	—
	M053301	1–2	600	97	0.84	—
	M053401	1–5	600	85	—	0.94
	M059702	1–3	600	90	—	0.91
	M059801	1–2	600	100	0.97	—
	M070801	1–3	600	91	—	0.93
M21	M126001	1–2	600	99	0.99	—
	M129001	1–5	600	88	—	0.94
	M131201	1–2	600	99	0.96	—
M22	M133801	1–4	600	97	—	0.99
	M134601	1–2	600	97	0.92	—
	M135501	1–5	600	89	—	0.96

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