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U.S. History Assessment IRT Parameters

The table below contains links to Item Response Theory (IRT) parameters for NAEP U.S. history 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.

U.S. history Item Reponse Theory (IRT) parameters tables, NAEP assessments: 2001 and 2006
Year Assessment Change and continuity in American democracy: ideas, institutions, practices, and controversies The gathering of interactions of peoples, cultures, and ideas Economic and technological changes and their relation to society, ideas, and the environment The changing role of America in the world
2006 Combined national and state main assessment grade 4 R3 R3 R3 R3
Combined national and state main assessment grade 8 R3 R3 R3 R3
Combined national and state main assessment grade 12 R3 R3 R3 R3
2001 Combined national and state main assessment grade 4 R3 / R2 R3 / R2 R3 / R2 R3 / R2
Combined national and state main assessment grade 8 R3 / R2 R3 / R2 R3 / R2 R3 / R2
Combined national and state main assessment grade 12 R3 / R2 R3 / R2 R3 / R2 R3 / R2
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), 2001 and 2006 U.S. History Assessments.

Last updated 08 January 2010 (JL)

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National Center for Education Statistics - http://nces.ed.gov
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