Package: transDIF
Title: Score Comparability for Translated and Adapted Exams
Version: 0.1.0
Authors@R: person("Daniel", "Edi", email = "danieledi2026@gmail.com", role = c("aut", "cre", "cph"),
    comment = c(ORCID = "0000-0001-5475-819X"))
Description: An adaptation-comparability workflow for small, lower-scoring
    and unbalanced language groups where standard differential item
    functioning (DIF) tools (Magis, Beland, Tuerlinckx and De Boeck, 2010,
    <doi:10.3758/BRM.42.3.847>) break down. Calibrates the Rasch model in
    each language group, links the groups robustly through the densest
    cluster of items rather than assuming DIF cancels out (on anchor
    selection see Kopf, Zeileis and Strobl, 2015,
    <doi:10.1177/0013164414529792>), detects small-sample DIF with an
    empirical-Bayes spike-and-slab model and local false discovery rates
    (Efron, 2004, <doi:10.1198/016214504000000089>), quantifies whether
    item-level DIF accumulates into different pass rates, explains DIF by
    item features to give translators actionable guidance, and drafts a
    comparability report.
License: MIT + file LICENSE
URL: https://github.com/edidatasolutions/transDIF,
        https://edidatasolutions.github.io/transDIF/
BugReports: https://github.com/edidatasolutions/transDIF/issues
Encoding: UTF-8
Depends: R (>= 4.1)
Imports: stats
Suggests: knitr, markdown
VignetteBuilder: knitr
Config/roxygen2/version: 8.1.0
NeedsCompilation: no
Packaged: 2026-09-28 00:45:20 UTC; User
Author: Daniel Edi [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0001-5475-819X>)
Maintainer: Daniel Edi <danieledi2026@gmail.com>
Repository: CRAN
Date/Publication: 2026-10-08 09:20:02 UTC
