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xxIRT  

Item Response Theory and Computer-Based Testing in R
View on CRAN: Click here


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

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

Install by package version:
library("remotes")
install_version("xxIRT", "2.1.2")



Attach the package and use:
library("xxIRT")
Maintained by
Xiao Luo
[Scholar Profile | Author Map]
First Published: 2016-08-13
Latest Update: 2019-03-22
Description:
A suite of psychometric analysis tools for research and operation, including: (1) computation of probability, information, and likelihood for the 3PL, GPCM, and GRM; (2) parameter estimation using joint or marginal likelihood estimation method; (3) simulation of computerized adaptive testing using built-in or customized algorithms; (4) assembly and simulation of multistage testing. The full documentation and tutorials are at <https://github.com/xluo11/xxIRT>.
How to cite:
Xiao Luo (2016). xxIRT: Item Response Theory and Computer-Based Testing in R. R package version 2.1.2, https://cran.r-project.org/web/packages/xxIRT. Accessed 19 Feb. 2025.
Previous versions and publish date:
1.0.1 (2016-08-13 16:53), 1.1.0 (2016-08-29 20:41), 2.0.0 (2017-01-11 00:36), 2.0.1 (2017-04-13 19:19), 2.0.3 (2017-08-30 18:12), 2.1.0 (2018-07-06 00:50), 2.1.1 (2018-10-02 20:30)
Other packages that cited xxIRT R package
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Other R packages that xxIRT depends, imports, suggests or enhances
Complete documentation for xxIRT
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