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Reading Assessment IRT Parameters

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

Reading Item Reponse Theory (IRT) parameters tables, NAEP main assessments: 2000–2007
Year Assessment Reading for literary experience scale Reading to gain information  scale Reading to perform a task scale
2007 Combined national and state main assessment grade 4 R3 R3
Combined national and state main assessment grade 8 R3 R3 R3
2005 Combined national and state main assessment grade 4 R3 R3
Combined national and state main assessment grade 8 R3 R3 R3
National main assessment grade 12 R3 R3 R3
2003 Combined national and state main assessment grade 4 R3 R3
Combined national and state main assessment grade 8 R3 R3 R3
2002 Combined national and state main assessment grade 4 R3 R3
Combined national and state main assessment grade 8 R3 R3 R3
National main assessment grade 12 R3 R3 R3
2000 National main assessment grade 4 R3 / R2 R3 / R2
† Not applicable.
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), 2000-2007 Reading Assessments.

 

Reading Long-Term Trend Assessment Item Response Theory Parameters

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

Reading long-term trend assessment Item Response Theory (IRT) parameters: 2004
Year Assessment Age 9 Age 13 Age 17
2004 Reading long-term trend assessment R3 R3 R3
Reading 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 Reading Assessments.

Last updated 23 June 2010 (GF)

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