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equateIRT  

IRT Equating Methods
View on CRAN: Click here


Download and install equateIRT package within the R console
Install from CRAN:
install.packages("equateIRT")

Install from Github:
library("remotes")
install_github("cran/equateIRT")

Install by package version:
library("remotes")
install_version("equateIRT", "2.5.2")



Attach the package and use:
library("equateIRT")
Maintained by
Michela Battauz
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2013-06-24
Latest Update: 2025-04-30
Description:
Computation of direct, chain and average (bisector) equating coefficients with standard errors using Item Response Theory (IRT) methods for dichotomous items (Battauz (2013) , Battauz (2015) ). 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) ). The package includes tests to access the stability of the equating transformations (Battauz(2022) ).
How to cite:
Michela Battauz (2013). equateIRT: IRT Equating Methods. R package version 2.5.2, https://cran.r-project.org/web/packages/equateIRT. Accessed 06 Aug. 2026.
Previous versions and publish date:
(2026-07-09 07:36), 1.0-1 (2013-07-04 16:52), 1.0 (2013-06-24 17:42), 1.1 (2014-05-15 16:38), 1.2-1 (2015-11-26 17:03), 1.2-2 (2015-12-18 14:07), 1.2-3 (2016-02-04 11:36), 1.2 (2014-11-14 18:12), 2.0-1 (2016-07-25 20:41), 2.0-2 (2017-03-30 13:37), 2.0-3 (2017-06-22 13:30), 2.0-4 (2017-11-02 10:42), 2.0-5 (2018-06-08 17:42), 2.0 (2016-03-30 20:35), 2.1.0 (2018-10-02 20:30), 2.2.0 (2021-05-31 13:00), 2.2.1 (2021-10-08 10:40), 2.3.0 (2022-08-08 12:30), 2.4.0 (2024-03-26 17:30), 2.5.0 (2024-07-30 13:50), 2.5.1 (2024-10-04 01:00)
Other packages that cited equateIRT R package
View equateIRT citation profile
Other R packages that equateIRT depends, imports, suggests or enhances
Complete documentation for equateIRT
Functions, R codes and Examples using the equateIRT R package
Some associated functions: alldirec . bisectorec . chainec . convert . data2pl . dataDIF . dif.test . direc . eqc . equateIRT-package . est2pl . est3pl . estrasch . id.test . import.ltm . itm . linkp . modIRT . score . sd.test . summary.ceqc . summary.ceqclist . summary.eqc . summary.eqclist . summary.meqc . 
Some associated R codes: Full equateIRT package functions and examples
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