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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 → Mathematics Assessment Subscale Composition for New and Previously Administered Blocks at Grade 12: 2005

NAEP Technical DocumentationMathematics Assessment Subscale Composition for New and Previously Administered Blocks at Grade 12: 2005

NAEP assessments typically include blocks of new items and blocks of items from previous assessments; however, in 2005, the mathematics assessment at grade 12 was administered for the first time with a new framework. Therefore, no items were scaled based on previous administrations. For the new items in each mathematics scale, the number of multiple-choice, dichotomously scored constructed-response and polytomously scored constructed-response items are provided at grade 12. 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 12 mathematics national main assessment: 2005

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
Total	119	0	24	0	30	1	6	0
Number, properties, and operations	21	0	4	0	6	0	0	0
Measurement & Geometry	40	0	7	0	12	0	1	0
Data analysis and probability	20	0	6	0	7	0	2	0
Algebra	38	0	7	0	5	1	3	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. 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), 2005 Mathematics Assessment.

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