NAEP Analysis and Scaling - IRT Parameters for the Mathematics Assessments

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NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Assessment IRT Parameters → Mathematics Assessment IRT Parameters

Mathematics Assessment IRT Parameters

The table below contains links to Item Response Theory (IRT) parameters for NAEP mathematics items that were scaled, as well as the block in which each item appeared for each grade (Block) and the position of each item within its block (Item). Note that these item parameters are provided in the metrics used for the original calibration of the scales.

Mathematics Item Reponse Theory (IRT) parameters tables, NAEP assessments: 2000–2007
Year	Assessment	Number sense, properties, and operations scale	Measurement scale	Geometry and spatial sense scale	Data analysis, statistics, and probability scale	Algebra and functions scale
2007	Combined national and state main assessment grade 4	R3	R3	R3	R3	R3
2007	Combined national and state main assessment grade 8	R3	R3	R3	R3	R3
2005	Combined national and state main assessment grade 4	R3	R3	R3	R3	R3
	Combined national and state main assessment grade 8	R3	R3	R3	R3	R3
	National main assessment grade 12¹	R3	R3		R3	R3
2003	Combined national and state main assessment grade 4	R3	R3	R3	R3	R3
2003	Combined national and state main assessment grade 8	R3	R3	R3	R3	R3
2000	National main assessment grade 4	R3 / R2	R3 / R2	R3 / R2	R3 / R2	R3 / R2
	National main assessment grade 8	R3 / R2	R3 / R2	R3 / R2	R3 / R2	R3 / R2
	National main assessment grade 12	R3 / R2	R3 / R2	R3 / R2	R3 / R2	R3 / R2
	State assessment grade 4	R3 / R2	R3 / R2	R3 / R2	R3 / R2	R3 / R2
	State assessment grade 8	R3 / R2	R3 / R2	R3 / R2	R3 / R2	R3 / R2
¹ The two subscales were combined for scaling for grade 12. NOTE: R2 refers to accommodations not offered; R3 refers to accommodations offered to students with disabilities (SD) and English language learners (ELL) participating in the NAEP assessment. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 - 2007 Mathematics Assessments.

Mathematics Long-Term Trend Assessment IRT Parameters

The table below contains links to Item Response Theory (IRT) parameters for NAEP mathematics long-term trend items that were scaled, as well as the block in which each item appears for each age group and the position of each item within its block. Note that these item parameters are provided in the metrics used for the original univariate scale.

Mathematics long-term trend parameters tables, NAEP assessments: 2004
Year	Assessment	Age 9	Age 13	Age 17
2004	Long-term trend assessment	R3	R3	R3
2004	Long-term trend bridge study assessment	R3	R3	R3
NOTE: R3 refers to accommodations offered to students with disabilities (SD) and English language learners (ELL) participating in the NAEP assessment. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004 Mathematics Assessments.

Last updated 23 June 2010 (GF)

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National Center for Education Statistics - http://nces.ed.gov
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U.S. Department of Education
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National Center for Education Statistics