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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 "GMX" in publications use:'
type: software
license: GPL-3.0-or-later
title: 'GMX: Extended Graphical Model Checks for the Rasch Family of Models'
version: 0.9-2
identifiers:
- type: doi
  value: 10.32614/CRAN.package.GMX
abstract: The function plotLRT() draws pairwise graphical model checks for the Rasch
  Model (RM; Rasch, 1960), the Partial Credit Model(PCM; Masters, 1982), and the Rating
  Scale Model (RSM; Andrich, 1978) using the output object of eRm::LRtest(). The function
  cLRT() provides a conditional Likelihood Ratio Test (Andersen, 1973), using the
  routines of 'psychotools'. Users may choose to plot the threshold parameters, the
  cumulative thresholds, the average thresholds per item, or the person parameters.
  Extended coloring options allow for automated item-wise or threshold-wise coloring.
  For multi-group splits, all pairwise group comparisons are drawn automatically.
  For more details see Andersen (1973) <https://doi.org/10.1007/BF02291180>, Andrich
  (1978) <https://doi.org/10.1007/BF02293814>, Masters (1982) <https://doi.org/10.1007/BF02296272>
  and Rasch (1960, ISBN:9780598554512).
authors:
- family-names: Alexandrowicz
  given-names: Rainer W.
  email: rainer.alexandrowicz@aau.at
preferred-citation:
  type: manual
  title: 'GMX: Extended Graphical Model Checks for the Rasch Family of Models'
  authors:
  - family-names: Alexandrowicz
    given-names: Rainer W.
    email: rainer.alexandrowicz@aau.at
  year: '2026'
  notes: R package version 0.9-2
repository: https://rwa-thebook.r-universe.dev
commit: b6560dfb4a4e8dd5a8487f3e46113ae9f52001d4
date-released: '2026-03-06'
contact:
- family-names: Alexandrowicz
  given-names: Rainer W.
  email: rainer.alexandrowicz@aau.at
references:
- type: manual
  title: 'GMX: Extended Graphical Model Checks of RM/PCM/RSM for Multi-Group Splits'
  authors:
  - name: Rainer W. Alexandrowicz
  year: '2023'
  version: '0.9'
  url: https://osf.io/2ryd8/
- type: article
  title: 'GMX: Extended Graphical Model Checks. A Versatile Replacement of the plotGOF()
    Function of eRm'
  authors:
  - name: Rainer W. Alexandrowicz
  journal: Psychological Test and Assessment Modeling
  year: '2022'
  volume: '64'
  issue: '3'
  start: '215'
  end: '225'
- type: article
  title: 'Extending GMX: Conditional Likelihood Ratio Test and Extended Graphical
    Model Checks with psychotools'
  authors:
  - name: Rainer W. Alexandrowicz
  journal: Psychological Test and Assessment Modeling
  year: '2023'
  volume: '65'
  issue: '2'
  start: '259'
  end: '269'