NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Scales → Scale Composition by Item Type for New and Trend Blocks → Reading Long-Term Trend Assessment Scale Composition for New and Previously Administered Blocks at Age 13: 2012

NAEP Technical DocumentationReading Long-Term Trend Assessment Scale Composition for New and Previously Administered Blocks at Age 13: 2012

Each 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 long-term trend scale, the number of multiple-choice, dichotomously, and polytomously scored constructed-response items are provided at age 13. The item counts are available for each scale as defined in the final Item Response Theory (IRT) scales.

Scale composition for new blocks as defined after scaling, age 13 reading long-term trend assessment, by item type: 2012

	Multiple-choice items		Dichotomously scored constructed-response items		Polytomously scored constructed-response items
	Scaled	Dropped	Scaled	Dropped	Polytomous uncollapsed	Dichotomous collapsed	Polytomous collapsed	Dropped
NOTE: A single overall scale was used. "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. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2012 Reading Long-Term Trend Assessment.
Total	8	0	0	0	1	0	0	0

Scale composition for trend blocks as defined after scaling, age 13 reading long-term trend assessment, by item type: 2012

	Multiple-choice items			Dichotomously scored constructed-response items			Polytomously scored constructed-response items
	Concurrent	Split	Dropped	Concurrent	Split	Dropped	Polytomous uncollapsed	Dichotomous collapsed	Polytomous collapsed	Split	Dropped
NOTE: A single overall scale was used. "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. Some items were administered previously under different contexts. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2012 Reading Long-Term Trend Assessment.
Total	88	1	1	0	0	0	5	0	1	2	0

Block composition, age 13 reading long-term trend assessment, by item type and block: 2012

Block	Total number of items	Number of multiple-choice items	Number of constructed-response items
			2-category	3-category	4-category	5-category
NOTE: For a small number of constructed-response items, adjacent categories were combined. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2012 Reading Long-Term Trend Assessment.
Total	106	98	0	0	5	2
R1	10	9	0	0	0	1
R2	9	8	0	0	1	0
R3	11	10	0	0	1	0
R4	11	10	0	0	1	0
R5	10	8	0	1	1	0
R6	14	14	0	0	0	0
R7	11	11	0	0	0	0
R8	9	8	0	0	0	1
R9	10	9	0	0	1	0
R10	11	11	0	0	0	0

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