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NAEP Analysis and Scaling → Initial Activities → Summaries of Response Rates → Summary Response Rates for the NAEP 2004 Mathematics Long-Term Trend Assessment

NAEP Technical DocumentationSummary Response Rates for the NAEP 2004 Mathematics Long-Term Trend Assessment

The tables below provide relevant summary statistics for the 2004 mathematics long-term trend assessment.

Number of items, by item type and age, mathematics long-term trend assessment: 2004
Age	Multiple-choice items	Constructed-response items
9	103	37
13	129	37
17	128	34
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004 Mathematics Long-Term Trend Assessment.

Average percentage missing, by item type and age, mathematics long-term trend assessment: 2004
Age	Statistic	Multiple-choice items	Constructed-response items
9	Average percentage missing	5.26	5.35
	Minimum	0.44	0.67
	Maximum	19.10	16.37
13	Average percentage missing	3.03	3.70
	Minimum	0.18	0.11
	Maximum	21.88	21.45
17	Average percentage missing	2.34	7.50
	Minimum	0.48	0.94
	Maximum	15.90	26.73
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), 2004 Mathematics Long-Term Trend Assessment.

Average percentage off-task, by item type and age, mathematics long-term trend assessment: 2004
Age	Statistic	Constructed-response items
9	Average percentage off-task	0.10
	Minimum	0.00
	Maximum	2.11
13	Average percentage off-task	0.04
	Minimum	0.00
	Maximum	0.28
17	Average percentage off-task	0.32
	Minimum	0.02
	Maximum	1.13
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), 2004 Mathematics Long-Term Trend Assessment.

Average weighted percentage correct, by item type and age, mathematics long-term trend assessment: 2004
Age	Multiple-choice items	Constructed-response items
9	63.55	66.52
13	67.05	67.69
17	70.64	55.95
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004 Mathematics Long-Term Trend Assessment.

Last updated 21 May 2008 (GF)

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