Page Title:
Keywords:
Description:
Skip Navigation
NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Assessment IRT Parameters → IRT Parameters for the Reading Assessments

Reading Assessment IRT Parameters

The table links provided below contain 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.

Links to reading item response theory (IRT) parameters tables, by year: Various years 2000–2011
Year Assessment Reading to
gain information scale
Reading for literary experience scale Reading to
perform a task
scale
Reading meaning vocabulary
2011 Combined national and state assessments grade 4 R3 R3 R3
Combined national and state assessments grade 8 R3 R3 R3
2009 Combined national and state assessments grade 4 R3 R3 R3
Combined national and state assessments grade 8 R3 R3 R3
Combined national and state assessments grade 12 R3 R3 R3
2007 Combined national and state assessments grade 4 R3 R3
Combined national and state assessments grade 8 R3 R3 R3
2005 Combined national and state assessments grade 4 R3 R3
Combined national and state assessments grade 8 R3 R3 R3
Combined national and state assessments grade 12 R3 R3 R3
2003 Combined national and state assessments grade 4 R3 R3
Combined national and state assessments grade 8 R3 R3 R3
2002 National assessment grade 4 R3 R3
National assessment grade 8 R3 R3 R3
National 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), various years, 2000–2011 Reading Assessments.

Reading Long-Term Trend Assessment IRT Parameters

The links provided below contain 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.

Links to reading long-term trend parameters tables, by year: 2004 and 2008
Year Assessment Age 9 Age 13 Age 17
2008 Long-term trend assessment R3 R3 R3
2004 Long-term trend assessment R3 R3 R3
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 and 2008 Reading Assessments.

Last updated 14 March 2016 (GF)