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
| 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. |
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| 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)