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NAEP Analysis and Scaling → Initial Activities → Summaries of Response Rates for NAEP Assessments → Summary Response Rates for the NAEP 2000 Mathematics National Main Assessment (Accommodations Permitted [R3])

NAEP Technical DocumentationSummary Response Rates for the NAEP 2000 Mathematics National Main Assessment (Accommodations Permitted [R3])

The tables below provide relevant summary statistics for the 2000 mathematics national main assessment (accommodations permitted [R3]): 2000.

Number of items, by item type and grade, mathematics national main assessment (accommodations permitted [R3]): 2000

Grade	Multiple-choice items	Dichotomous constructed-response items	Polytomous constructed-response items
4	85	27	33
8	106	31	31
12	104	30	34
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 Mathematics Assessment.

Average percentage missing, by item type and grade, mathematics national main assessment (accommodations permitted [R3]): 2000

Grade	Statistic	Multiple-choice items	Dichotomous constructed-response items	Polytomous constructed-response items
4	Average percentage missing	3.49	6.99	12.03
	Minimum	0.80	1.65	2.30
	Maximum	16.25	20.17	47.07
8	Average percentage missing	4.42	6.13	12.09
	Minimum	0.36	1.49	2.60
	Maximum	29.24	16.78	37.22
12	Average percentage missing	4.92	15.56	19.06
	Minimum	0.90	1.65	1.83
	Maximum	42.36	49.42	53.85
NOTE: Missing responses includes the categories "omitted" and "not-reached". SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 Mathematics Assessment.

Average percentage off-task, by item type and grade, mathematics national main assessment (accommodations permitted [R3]): 2000

Grade	Statistic	Dichotomous constructed-response items	Polytomous constructed-response items
4	Average percentage off-task	0.24	0.16
	Minimum	0.00	0.00
	Maximum	2.18	0.64
8	Average percentage off-task	0.19	0.22
	Minimum	0.00	0.00
	Maximum	1.05	0.76
12	Average percentage off-task	0.88	0.86
	Minimum	0.00	0.16
	Maximum	7.17	2.28
NOTE: An "off-task" response (constructed-response items only) is a response that is unrelated to the question and is considered inappropriate. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 Mathematics Assessment.

Average weighted percentage correct, by item type and grade, mathematics national main assessment (accommodations permitted [R3]): 2000

Grade	Multiple-choice items	Dichotomous constructed-response items	Polytomous constructed-response items
4	55.86	46.21	38.73
8	56.48	58.27	39.04
12	56.47	40.11	31.55
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 Mathematics Assessment.

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