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regDIF

Regularized Differential Item Functioning

v1.1.1 · Feb 22, 2024 · MIT + file LICENSE

Description

Performs regularization of differential item functioning (DIF) parameters in item response theory (IRT) models (Belzak & Bauer, 2020) <https://pubmed.ncbi.nlm.nih.gov/31916799/> using a penalized expectation-maximization algorithm.

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CRAN Check Status

2 NOTE
12 OK
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r-devel-linux-x86_64-debian-clang NOTE
r-devel-linux-x86_64-debian-gcc NOTE
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-macos-arm64 OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK
Check details (2 non-OK)
NOTE r-devel-linux-x86_64-debian-clang

CRAN incoming feasibility

Maintainer: ‘William Belzak <wbelzak@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "William",
                    family = "Belzak",
                    role = c("aut", "cre"),
                    email = "wbelzak@gmail.com")
as necessary.
NOTE r-devel-linux-x86_64-debian-gcc

CRAN incoming feasibility

Maintainer: ‘William Belzak <wbelzak@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "William",
                    family = "Belzak",
                    role = c("aut", "cre"),
                    email = "wbelzak@gmail.com")
as necessary.

Check History

NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
NOTE r-devel-linux-x86_64-debian-clang

CRAN incoming feasibility

Maintainer: ‘William Belzak <wbelzak@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "William",
                    family = "Belzak",
                    role = c("aut", "cre"),
                    email = "wbelzak@gmail.com")
as necessary.
NOTE r-devel-linux-x86_64-debian-gcc

CRAN incoming feasibility

Maintainer: ‘William Belzak <wbelzak@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "William",
                    family = "Belzak",
                    role = c("aut", "cre"),
                    email = "wbelzak@gmail.com")
as necessary.

Dependency Network

Dependencies Reverse dependencies statmod foreach regDIF

Version History

new 1.1.1 Mar 10, 2026
updated 1.1.1 ← 1.1.0 diff Feb 22, 2024
updated 1.1.0 ← 1.0.0 diff Jan 4, 2023
new 1.0.0 Jun 21, 2021