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NAEP Analysis and Scaling → Estimation of NAEP Scale Scores → NAEP Scales → Scale Composition by Item Type for New and Trend Blocks → U.S. History Assessment Subscale Composition for New and Trend Blocks at Grade 8

NAEP Technical DocumentationU.S. History Assessment Subscale Composition for New and Trend Blocks at Grade 8

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 U.S. history 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 for new blocks as defined after scaling, grade 8 U.S. history assessment, by item type: 2006

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	33	0	1	0	14	0	0	0
Democracy1	8	0	0	0	1	0	0	0
Cultures2	7	0	0	0	6	0	0	0
Technology3	14	0	0	0	7	0	0	0
World role4	4	0	1	0	0	0	0	0
1 Change and Continuity in American Democracy: Ideas, Institutions, Practices, and Controversies. 2 The Gathering of Interactions of Peoples, Cultures, and Ideas. 3 Economic and Technological Changes and Their Relation to Society, Ideas, and the Environment. 4 The Changing Role of America in the World. 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), 2006 U.S. History Assessment.

Subscale composition for previously administered blocks as defined after scaling, grade 8 U.S. history national main assessment, by item type: 2006

Subscale	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	79	1	0	1	0	0	27	4	0	3	0
Democracy1	26	1	0	0	0	0	8	1	0	2	0
Cultures2	24	0	0	0	0	0	5	0	0	0	0
Technology3	18	0	0	0	0	0	8	2	0	1	0
World role4	11	0	0	1	0	0	6	1	0	0	0
1 Change and Continuity in American Democracy: Ideas, Institutions, Practices, and Controversies. 2 The Gathering of Interactions of Peoples, Cultures, and Ideas. 3 Economic and Technological Changes and Their Relation to Society, Ideas, and the Environment. 4 The Changing Role of America in the World. 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. "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), 2006 U.S. History Assessment.

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