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NAEP Analysis and Scaling → Estimation of NAEP Scale Scores → NAEP Assessment IRT Parameters → Economics Assessment IRT Parameters

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.

Economics long-term trend IRT parameters: 2006

Year	Assessment	Market economy	National economy	International economy
2006	Long-term trend assessment grade 12	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 Economics Assessments.

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