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NAEP Analysis and Scaling → Initial Activities → Summaries of Item-Level Response Rates for NAEP Assessments → Summary Item Response Rates, by Item Type and Grade, Reading Vocabulary Assessment: 2009

NAEP Technical DocumentationSummary Item Response Rates, by Item Type and Grade, Reading Vocabulary Assessment: 2009

Summary item response rates, by item type and grade, reading vocabulary assessment: 2009
Grade Statistic Multiple-choice items Dichotomous items Polytomous items
† Not applicable.
1 Missing responses includes the categories "omitted" and "not-reached."
2 An "off-task" response (constructed-response items only) is a response that is unrelated to the question and is considered inappropriate.
3 The item counts include reading vocabulary items from both the half-blocks as well as the reading vocabulary items embedded within the 25-minute reading comprehension blocks. 
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Reading Vocabulary Assessment.
4 Number of items3 40.00 † †
Average percent missing1 6.08 † †
Minimum 0.57 † †
Maximum 20.70 † †
Average percent off-task2 † † †
Minimum † † †
Maximum † † †
Average weighted proportion correct 59.85 † †
8 Number of items3 55.00 † †
Average percent missing1 1.27 † †
Minimum 0.13 † †
Maximum 4.88 † †
Average percent off-task2 † † †
Minimum † † †
Maximum † † †
Average weighted proportion correct 72.41 † †
12 Number of items3 47.00 † †
Average percent missing1 1.14 † †
Minimum 0.20 † †
Maximum 5.59 † †
Average percent off-task2 † † †
Minimum † † †
Maximum † † †
Average weighted proportion correct 69.34 † †
Last updated 06 January 2016 (GF)
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NCES
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