Package: equateIRT 2.5.0

equateIRT: IRT Equating Methods

Computation of direct, chain and average (bisector) equating coefficients with standard errors using Item Response Theory (IRT) methods for dichotomous items (Battauz (2013) <doi:10.1007/s11336-012-9316-y>, Battauz (2015) <doi:10.18637/jss.v068.i07>). Test scoring can be performed by true score equating and observed score equating methods. DIF detection can be performed using a Wald-type test (Battauz (2019) <doi:10.1007/s10260-018-00442-w>). The package includes tests to assess the stability of the equating transformations (Battauz(2022) <doi:10.1111/stan.12277>).

Authors:Michela Battauz [aut, cre]

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equateIRT.pdf |equateIRT.html✨
equateIRT/json (API)
NEWS

# Install 'equateIRT' in R:
install.packages('equateIRT', repos = c('https://micbtz.r-universe.dev', 'https://cloud.r-project.org'))

Peer review:

Datasets:
  • data2pl - Simulated Data Sets
  • dataDIF - Simulated Data Set with DIF
  • est2pl - Item Parameter Estimates and Covariance Matrices of a Two-Parameter Logistic Model
  • est3pl - Item Parameter Estimates and Covariance Matrices of a Three-Parameter Logistic Model
  • estrasch - Item Parameter Estimates and Covariance Matrices of a Rasch Model

On CRAN:

This package does not link to any Github/Gitlab/R-forge repository. No issue tracker or development information is available.

17 exports 1.75 score 69 dependencies 2 dependents 4 mentions 32 scripts 865 downloads

Last updated 2 months agofrom:33c698d66c. Checks:OK: 7. Indexed: yes.

TargetResultDate
Doc / VignettesOKAug 30 2024
R-4.5-winOKAug 30 2024
R-4.5-linuxOKAug 30 2024
R-4.4-winOKAug 30 2024
R-4.4-macOKAug 30 2024
R-4.3-winOKAug 30 2024
R-4.3-macOKAug 30 2024

Exports:alldirecbisectorecchainecconvertdif.testdireceqcid.testimport.flexmirtimport.irtproimport.ltmimport.mirtitmlinkpmodIRTscoresd.test

Dependencies:audiobeeprbriocallrcliclustercodetoolscrayoncurldcurverDerivdescdiffobjdigestdplyrevaluatefansifsfuturefuture.applygenericsglobalsglueGPArotationgridExtragtablejsonlitelatticelifecyclelistenvmagrittrMASSMatrixmgcvmirtnlmeparallellypbapplypermutepillarpkgbuildpkgconfigpkgloadpraiseprocessxprogressrpsR.methodsS3R.ooR.utilsR6RcppRcppArmadillorematch2rlangrprojrootRPushbulletsessioninfoSimDesignsnowstatmodtestthattibbletidyselectutf8vctrsveganwaldowithr

equateIRT: An R Package for IRT Test Equating

Rendered fromequateIRT_paper.Rnwusingutils::Sweaveon Aug 30 2024.

Last update: 2017-03-30
Started: 2017-03-30

The R Package equateIRT: A Tutorial

Rendered fromequateIRT_tutorial.Rmdusingknitr::rmarkdownon Aug 30 2024.

Last update: 2024-07-31
Started: 2017-03-30

Readme and manuals

Help Manual

Help pageTopics
IRT Equating MethodsequateIRT-package equateIRT
Direct Equating Coefficients Between All Pairs of a List of Formsalldirec print.eqclist
Bisector Equating Coefficientsbisectorec print.meqc
Chain Equating Coefficientsceqc chainec
Item Parameters Conversionconvert
Simulated Data Setsdata2pl
Simulated Data Set with DIFdataDIF
DIF Testdif.test print.dift
Direct Equating Coefficientsdirec print.eqc
Extract Equating Coefficientseqc eqc.ceqc eqc.ceqclist eqc.eqc eqc.eqclist eqc.meqc
Item Parameter Estimates and Covariance Matrices of a Two-Parameter Logistic Modelest2pl
Item Parameter Estimates and Covariance Matrices of a Three-Parameter Logistic Modelest3pl
Item Parameter Estimates and Covariance Matrices of a Rasch Modelestrasch
Identity Testid.test print.idtest
Import Item Parameters Estimates and Covariance Matrices from IRT Softwareimport.flexmirt import.irtpro import.ltm import.mirt
Extract Item Parametersitm itm.ceqc itm.ceqclist itm.eqc itm.eqclist itm.meqc
Linkage Planlinkp
Estimated Coefficients and Covariance Matrix of IRT ModelsmodIRT
Scoringscore score.ceqc score.ceqclist score.eqc score.eqclist score.meqc
Test on Chain Equating Coefficientsprint.sdtest sd.test
Summarizing Estimated Chain Equating Coefficientsprint.summary.ceqc summary.ceqc
Summarizing a List of Estimated Chain Equating Coefficientsprint.summary.ceqclist summary.ceqclist
Summarizing Estimated Equating Coefficientsprint.summary.eqc summary.eqc
Summarizing a List of Estimated Direct Equating Coefficientsprint.summary.eqclist summary.eqclist
Summarizing Bisector Equating Coefficientsprint.summary.meqc summary.meqc