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

NAEP Technical DocumentationEconomics Assessment IRT Parameters

The table below contains links to Item Response Theory (IRT) parameters for NAEP economics items that were scaled, as well as the block in which each item appears 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 Economics Item Response Theory (IRT) Parameters: 2006 and 2012

Year	Market economy	National economy	International economy
2012	R3	R3	R3
2006	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), 2006 and 2012 Economics Assessments.

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