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# CITATION file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "iDIFr" in publications use:'
type: software
license: MIT
title: 'iDIFr: Intersectional Differential Item Functioning Analysis'
version: 1.0.1
doi: 10.32614/CRAN.package.iDIFr
abstract: A toolkit for detecting Differential Item Functioning (DIF) using Logistic
  Regression (LR) as described in Swaminathan and Rogers (1990) <https://doi.org/10.1111/j.1745-3984.1990.tb00754.x>,
  the IRT Likelihood Ratio Test (LRT) following Thissen, Steinberg & Wainer (1993,
  ISBN:0-8058-0972-4), and model-based recursive partitioning (MOB) as implemented
  in 'strucchange' following Strobl, Kopf and Zeileis (2015) <https://doi.org/10.1007/s11336-013-9388-3>.
  Designed for both standard two-group and intersectional multi-group designs, 'iDIFr'
  prioritises effect size reporting alongside statistical significance, clear guidance
  on group construction, and interpretable output suitable for applied testing contexts.
  Built-in Intersectional Contrast Analysis (ICA) classifies items as amplified, pure-intersection,
  obscured, or none by comparing single-variable and intersectional analyses.
authors:
- family-names: Rogers
  given-names: Thomas
  email: thomas.rogers@britishcouncil.org
repository: https://thmsrgrs.r-universe.dev
repository-code: https://github.com/thmsrgrs/iDIFr
commit: 1808d163d37fd3105f187d075f9203a807f3300a
url: https://github.com/thmsrgrs/iDIFr
date-released: '2026-06-02'
contact:
- family-names: Rogers
  given-names: Thomas
  email: thomas.rogers@britishcouncil.org