NAEP tdw - Summary Item Response Rates, Reading Combined National and State Assessment, by Item Type and Grade: 2013

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NAEP Analysis and Scaling → Initial Activities → Summaries of Item-Level Response Rates for NAEP Assessments → Summary Item Response Rates, Reading Combined National and State Assessment, by Item Type and Grade: 2013

NAEP Technical DocumentationSummary item response rates, reading combined national and state assessment, by item type and grade: 2013
Grade	Statistic	Multiple-choice items	Dichotomous items	Polytomous items
† Not applicable. ¹ Missing responses include the categories "omitted" and "not-reached." ² An "off-task" response (constructed-response items only) is a response that is unrelated to the question. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2013 Reading Assessment.
4	Number of items	67	6	25
	Average percent missing¹	5.39	11.43	10.31
	Minimum	.54	1.40	2.54
	Maximum	23.80	25.80	21.05
	Average percent off-task²	†	.34	.34
	Minimum	†	.16	.10
	Maximum	†	.79	1.03
	Average weighted proportion correct	63.91	52.10	42.96
8	Number of items	79	9	43
	Average percent missing¹	1.98	3.10	5.54
	Minimum	.16	.68	98
	Maximum	9.48	7.57	19.77
	Average percent off-task²	†	.16	.27
	Minimum	†	.10	.09
	Maximum	†	.29	.61
	Average weighted proportion correct	75.67	69.88	53.40
12	Number of items	78	9	44
	Average percent missing¹	1.42	3.89	6.97
	Minimum	.19	.67	1.26
	Maximum	5.48	8.78	19.02
	Average percent off-task²	†	.45	.61
	Minimum	†	.20	.22
	Maximum	†	.97	1.42
	Average weighted proportion correct	71.85	60.48	51.54

Last updated 13 June 2017 (DC)

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