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NAEP Analysis and Scaling → Estimation of NAEP Score Scales → Treatment of Items to Avoid Violations of Assumptions → Treatment of Items in NAEP Assessments → Treatment of Items in the Scaling of the 2012 Mathematics Long-Term Trend Scales

NAEP Technical DocumentationTreatment of Items in the Scaling of the 2012 Mathematics Long-Term Trend Assessment Scales

Items deleted from the final scaling, mathematics long-term trend assessment, by block and age: 2012
Age	Block	NAEP ID	Reason for decision
NOTE: A single overall scale was used. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2012 Mathematics Long-Term Trend Assessment.
13	M2	N303001	To match 2008 scaling
	M4	N318101	To match 2008 scaling
	M6	N299401	To match 2008 scaling
	M3	N324101	Model misfit
17	M2	N308701	To match 2008 scaling
	M6	N299401	To match 2008 scaling
	M4	N321501	Model misfit

Cluster items created for final scaling, mathematics long-term trend assessment, by block and age: 2012
Age	Block	NAEP ID	Reason for decision	NAEP IDs of items contributing to cluster
NOTE: A single overall scale was used. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2012 Mathematics Long-Term Trend Assessment.
9	M6	N2909CL	To match 2008 scaling	N290901, N291001

Recoding of polytomous items for scaling, mathematics long-term trend assessment, by block and age: 2012
Age	Block	NAEP ID	Reason for decision	Disposition
NOTE: A single overall scale was used. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2012 Mathematics Long-Term Trend Assessment.
9	M6	N2909CL	To match 2008 scaling	Collapsed categories: 0,1,2 becomes 0,0,1

Items scaled separately by assessment year, mathematics long-term trend assessment, by block and age: 2012
Age	Block	NAEP ID	Type
NOTE: A single overall scale was used. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2012 Mathematics Long-Term Trend Assessment.
13	M3	N324101	Multiple choice
13	M4	N318301	Multiple choice

Last updated 24 February 2016 (GF)

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