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NAEP Analysis and Scaling → Estimation of NAEP Scale Scores → Treatment of Items to Avoid Violations of Assumptions → Treatment of Items in NAEP Assessments → Treatment of Items in the Scaling of the 2006 National Civics Scales

NAEP Technical DocumentationTreatment of Items in the Scaling of the 2006 National Civics Scales

Items deleted from the final scaling, civics national main assessment, by block and grade: 2006

Grade	Block	NAEP ID	Reason for decision
4	C6	P042123	Model misfit in 2006
	C8	P040506	To match 1998 scaling
8	C5	P040905	To match 1998 scaling
	C8	P041204	To match 1998 scaling
12	C6	P041810	To match 1998 scaling
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2006 Civics Assessment.

Recoding of polytomous items for scaling, civics assessment, by block and grade: 2006

Grade	Block	NAEP ID	Reason for decision	Disposition
4	C4	P040102	To match 1998 scaling	Collapsed categories: 0,1,2 becomes 0,0,1
	C6	P042129	Lack of fit	Collapsed categories: 0,1,2 becomes 0,1,1
	C7	P040402	To match 1998 scaling	Collapsed categories: 0,1,2,3 becomes 0,0,1,2
	C7	P042147	Lack of fit	Collapsed categories: 0,1,2,3 becomes 0,0,1,2
8	C3	P042184	Lack of fit	Collapsed categories: 0,1,2, becomes 0,0,1
	C6	P041014	Lack of fit	Collapsed categories: 0,1,2 becomes 0,0,1
	C6	P041003	To match 1998 scaling	Collapsed categories: 0,1,2 becomes 0,0,1
	C7	P041106	Lack of fit	Collapsed categories: 0,1,2,3 becomes 0,1,1,2
	C8	P041202	Lack of fit	Collapsed categories: 0,1,2 becomes 0,1,1
	C10	P042155	Lack of fit	Collapsed categories: 0,1,2,3 becomes 0,1,2,2
12	C4	P041606	Lack of fit	Collapsed categories: 0,1,2 becomes 0,0,1,
	C5	P041705	To match 1998 scaling	Collapsed categories: 0,1,2, becomes 0,1,1
	C6	P041815	Lack of fit	Collapsed categories: 0,1,2 becomes 0,1,1
	C9	P042218	Lack of fit	Collapsed categories: 0,1,2,3 becomes 0,1,2,2
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2006 Civics Assessment.

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