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

Mathematics Assessment IRT Parameters

The table links provided below contain 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.

Links to mathematics item response theory (IRT) parameters tables, by year: Various years, 2000–2011
Year Assessment Number sense, properties, and operations scale Measurement scale Geometry scale Data analysis, statistics, and probability scale Algebra scale
2011 Combined national and state assessments grade 4 R3 R3 R3 R3 R3
Combined national and state assessments grade 8 R3 R3 R3 R3 R3
2009 Combined national and state assessments grade 4 R3 R3 R3
R3 R3
Combined national and state assessments grade 8 R3 R3 R3 R3 R3
Combined national and state assessments grade 121 R3 R3 R3 R3
2007 Combined national and state assessments grade 4 R3 R3 R3 R3 R3
Combined national and state assessments grade 8 R3 R3 R3 R3 R3
2005 Combined national and state assessments grade 4 R3 R3 R3 R3 R3
Combined national and state assessments grade 8 R3 R3 R3 R3 R3
Combined national and state assessments grade 121 R3 R3 R3 R3
2003 Combined national and state assessments grade 4 R3 R3 R3 R3 R3
Combined national and state  assessments grade 8 R3 R3 R3 R3 R3
2000 National assessment grade 4 R3 / R2 R3 / R2 R3 / R2 R3 / R2 R3 / R2
National assessment grade 8 R3 / R2 R3 / R2 R3 / R2 R3 / R2 R3 / R2
National 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–measurement and geometry–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), various years, 2000–2011 Mathematics Assessments.

 

Mathematics Long-Term Trend Assessment IRT Parameters

The links provided below contain 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.

Links to mathematics long-term trend parameters tables, by year: 2004 and 2008
Year Assessment Age 9 Age 13 Age 17
2008 Long-term trend assessment R3
R3
R3
2004 Long-term trend assessment R3
R3
R3
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 and 2008 Mathematics Assessments.

Last updated 14 March 2016 (GF)