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

NAEP Technical DocumentationSummary item response rates, mathematics combined national and state assessment, by item type and grade: 2013
Grade	Statistic	Multiple-choice items	Dichotomous items	Polytomous items
† Not applicable. # Rounds to zero. 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 Mathematics Assessment.
4	Number of items	105	18	31
	Average percent missing¹	2.65	6.83	4.21
	Minimum	.51	.99	.73
	Maximum	11.45	38.06	15.85
	Average percent off-task²	†	.08	.04
	Minimum	†	#	#
	Maximum	†	.27	.13
	Average weighted proportion correct	61.16	47.16	46.42
8	Number of items	115	12	32
	Average percent missing¹	3.04	7.18	8.87
	Minimum	.33	.97	.66
	Maximum	19.78	16.48	24.76
	Average percent off-task²	†	.25	.39
	Minimum	†	.01	#
	Maximum	†	.65	2.75
	Average weighted proportion correct	54.42	47.43	40.58
12	Number of items	131	32	43
	Average percent missing¹	2.60	9.09	10.93
	Minimum	.45	1.38	.95
	Maximum	12.60	32.78	33.87
	Average percent off-task²	†	.72	1.05
	Minimum	†	.02	#
	Maximum	†	4.56	5.68
	Average weighted proportion correct	48.84	34.96	25.02

Last updated 13 June 2017 (DC)

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