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NAEP Analysis and Scaling → Initial Activities → Summaries of Response Rates → Summary Response Rates for the NAEP 2004 Reading Long-Term Trend Bridge Study

NAEP Technical DocumentationSummary Response Rates for the NAEP 2004 Reading Long-Term Trend Bridge Study

The tables below provide relevant summary statistics for the 2004 reading long-term trend bridge study.

Average percentage missing, by item type and age, reading long-term trend bridge study: 2004
Age	Statistic	Multiple-choice items	Constructed-response items
9	Average percentage missing	6.33	21.27
	Minimum	0.57	8.45
	Maximum	24.04	36.87
13	Average percentage missing	3.73	9.88
	Minimum	0.15	3.32
	Maximum	26.56	26.66
17	Average percentage missing	3.87	11.69
	Minimum	0.13	2.58
	Maximum	23.35	32.97
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 Reading Long-Term Trend Assessment.

Average percentage off-task, by item type and age, reading long-term trend bridge study: 2004
Age	Statistic	Constructed-response items
9	Average percentage off-task	1.32
	Minimum	0.77
	Maximum	2.27
13	Average percentage off-task	0.52
	Minimum	0.00
	Maximum	1.21
17	Average percentage off-task	1.17
	Minimum	0.00
	Maximum	2.52
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 Reading Long-Term Trend Assessment.

Average weighted percentage correct, by item type and age, reading long-term trend bridge study: 2004
Age	Multiple-choice items	Constructed-response items
9	53.52	19.54
13	66.43	45.96
17	72.59	52.35
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004 Reading Long-Term Trend Assessment.

Last updated 21 May 2008 (GF)

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