NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Scales → Scale Composition by Item Type for New and Trend Blocks → Reading Vocabulary Assessment Subscale Composition for New and Previously Administered Blocks at Grade 4

NAEP Technical DocumentationReading Vocabulary Assessment Subscale Composition for New and Previously Administered Blocks at Grade 4

Each reading assessment includes blocks of new items and blocks of items from previous assessments. For the new items and for the previously administered items in each reading scale, the number of multiple-choice, scored constructed-response and scored constructed-response items are provided at grade 4. The item counts are available for each scale as defined in the final scales.

Scale composition for new blocks by item type as defined after scaling, by reporting scale, grade 4 reading vocabulary national assessment: 2009

Subscale	Multiple-choice items		Dichotomously scored constructed-response items		Polytomously scored constructed-response items
	Scaled	Dropped	Scaled	Dropped	Polytomous uncollapsed	Dichotomous collapsed	Polytomous collapsed	Dropped
1 Single overall scale. NOTE: "Dropped" denotes items that were deleted from the final scaling. "Collapsed" denotes items that had categories that were combined and recoded for scaling. Some items were administered previously under different contexts. The item counts include meaning vocabulary items from both the half-blocks as well as the meaning 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.
Total	40	0	0	0	0	0	0	0
OneScale1	40	0	0	0	0	0	0	0

Block composition by item type and block, grade 4 reading vocabulary national assessment: 2009

Block	Total number of items	Number of multiple-choice items	Number of constructed-response items
			2-category	3-category	4-category	5-category
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.
Total	40	40	0	0	0	0
R14	5	5	0	0	0	0
R15	5	5	0	0	0	0
R16	5	5	0	0	0	0
R17	5	5	0	0	0	0
Embedded	20	20	0	0	0	0

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