NAEP Analysis and Scaling - Summary Item Response Rates, Reading Vocabulary Assessment, By Item Type and Grade: 2011

NAEP Analysis and Scaling → Initial Activities → Summaries of Item-Level Response Rates for NAEP Assessments → Summary Item Response Rates, Reading Vocabulary Assessment, By Item Type and Grade: 2011

NAEP Technical DocumentationSummary item response rates, reading vocabulary assessment, by item type and grade: 2011
Grade	Statistic	Multiple-choice items	Dichotomous constructed- response items	Polytomous constructed-response 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. NOTE: Grade 12 reading vocabulary was not assessed in 2011. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2011 Reading Vocabulary Assessment.
4	Number of items³	40	†	†
	Average percent missing¹	6.51	†	†
	Minimum	0.81	†	†
	Maximum	22.08	†	†
	Average percent off-task²	†	†	†
	Minimum	†	†	†
	Maximum	†	†	†
	Average weighted percentage correct	58.95	†	†
8	Number of items³	56	†	†
	Average percent missing¹	1.46	†	†
	Minimum	0.28	†	†
	Maximum	8.75	†	†
	Average percent off-task²	†	†	†
	Minimum	†	†	†
	Maximum	†	†	†
	Average weighted percentage correct	72.42	†	†

Last updated 06 January 2016 (GF)