irw: Access and Analyze Data from the Item Response Warehouse

Find, download, and analyze datasets from the Item Response Warehouse, a harmonized collection of item response data from educational and psychological measurement described in Nadela et al. (2026) <doi:10.59863/cijg4549>. Functions search tables by metadata, fetch them in a common long format, reshape between long and wide layouts, simulate item response data, and compare the predictive accuracy of fitted models with the InterModel Vigorish.

Version: 1.3.1
Depends: R (≥ 4.0.0)
Imports: glue, httr, imv, tibble, tools, utils, stats
Suggests: arrow, redivis, testthat (≥ 3.0.0), withr, evaluate, mirt, gnm, BradleyTerry2
Published: 2026-10-18
DOI: 10.32614/CRAN.package.irw (may not be active yet)
Author: Hansol Lee [aut, cph], Michael Hardy [aut, cph], Ben Domingue [aut, cre, cph]
Maintainer: Ben Domingue <ben.domingue at gmail.com>
Contact: mailto:itemresponsewarehouse@stanford.edu
BugReports: https://github.com/itemresponsewarehouse/Rpkg/issues
License: MIT + file LICENSE
URL: https://itemresponsewarehouse.github.io/Rpkg/
NeedsCompilation: no
Additional_repositories: https://redivis.r-universe.dev
Materials: README, NEWS
CRAN checks: irw results

Documentation:

Reference manual: irw.html , irw.pdf

Downloads:

Package source: irw_1.3.1.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-release (arm64): not available, r-oldrel (arm64): not available, r-release (x86_64): not available, r-oldrel (x86_64): not available

Linking:

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