NAEP Analysis and Scaling - U.S. History Assessment IRT Parameters

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U.S. History Assessment IRT Parameters

The tables for which links are provided below contain 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.

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

Last updated 16 June 2008 (MH)

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U.S. History Assessment IRT Parameters

Last updated 16 June 2008 (MH)

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