Package: transDIF
Title: Score Comparability for Translated and Adapted Exams
Version: 0.1.0.9000
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
Repository: https://edidatasolutions.r-universe.dev
Date/Publication: 2026-10-10 14:12:58 UTC
RemoteUrl: https://github.com/edidatasolutions/transDIF
RemoteRef: HEAD
RemoteSha: 29734afe06e5e3996562f48ef3db69c4900638e9
NeedsCompilation: no
Packaged: 2026-10-10 18:48:06 UTC; root
Author: Daniel Edi [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0001-5475-819X>)
Maintainer: Daniel Edi <danieledi2026@gmail.com>