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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 "robustDIF" in publications use:'
type: software
license: GPL-3.0-or-later
title: 'robustDIF: Differential Item Functioning Using Robust Scaling'
version: 0.2.0
doi: 10.32614/CRAN.package.robustDIF
abstract: Provides tools for testing differential item functioning (DIF) and differential
  test functioning (DTF) in two-group item response theory models. The package estimates
  robust scaling parameters via iteratively reweighted least squares with Tukey's
  bisquare loss, and supports Wald-type tests of item-level and test-level differences
  from robust scaling parameters. Inputs can be supplied directly from model parameter/covariance
  objects or extracted from fitted 'mirt' and 'lavaan' models. Methods are described
  in Halpin (2022) <https://doi.org/10.48550/arXiv.2207.04598>.
authors:
- family-names: Halpin
  given-names: Peter
  email: peter.halpin@unc.edu
repository: https://peterhalpin.r-universe.dev
commit: fdabf378379e4bf2dc658ca13d4cc50370e90205
url: https://peterhalpin.github.io/robustDIF/
date-released: '2026-04-23'
contact:
- family-names: Halpin
  given-names: Peter
  email: peter.halpin@unc.edu