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NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Scales → Scale Composition by Item Type for New and Previously Administered Blocks → Reading Assessment Subscale Composition for New and Previously Administered Blocks at Grade 8: 2005

NAEP Technical DocumentationReading Assessment Subscale Composition for New and Previously Administered Blocks at Grade 8: 2005

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, dichotomously scored constructed-response and polytomously scored constructed-response items are provided at grade 8. The item counts are available for each scale as defined in the final Item Response Theory (IRT) scales.

Subscale composition by item type for new blocks as defined after scaling, grade 8 reading combined national and state main assessment: 2005

Scale	Multiple-choice items		Dichotomously scored constructed-response items		Polytomously scored constructed-response items
	Scaled	Dropped	Scaled	Dropped	Polytomous (uncollapsed)	Dichotomous collapsed	Polytomous collapsed	Dropped
Total	16	0	3	0	8	3	0	0
Reading for literary experience	11	0	0	0	4	1	0	0
Reading to gain information	6	0	2	0	2	1	0	0
Reading to perform a task	5	0	1	0	2	1	0	0
NOTE: "Dropped" denotes items that were deleted from the final scaling. "Collapsed" denotes items that had categories that were combined and recoded for scaling. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2005 Reading Assessment.

Subscale composition by item type for previously administered blocks as defined after scaling, grade 8 reading combined national and state main assessment: 2005

Scale	Multiple-choice items			Dichotomously scored constructed-response items			Polytomously scored constructed-response items
	Concurrent	Split	Dropped	Concurrent	Split	Dropped	Concurrent polytomous (uncollapsed)	Concurrent dichotomous collapsed	Concurrent polytomous collapsed	Split	Dropped
Total	46	0	0	29	2	0	18	7	3	7	0
Reading for literary experience	12	0	0	4	1	0	6	4	1	2	0
Reading to gain information	21	0	0	12	0	0	8	2	0	5	0
Reading to perform a task	13	0	0	13	1	0	4	1	2	0	0
NOTE: "Concurrent" denotes items that were scaled as common items across assessment years. "Split" denotes items that were scaled as different items in each assessment year. "Dropped" denotes items that were deleted from the final scaling. "Collapsed" denotes items that had categories that were combined and recoded for scaling. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2005 Reading Assessment.

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