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>.
| Version: | 2.1.2 | 
| Depends: | R (≥ 3.5.0) | 
| Imports: | ggplot2, glpkAPI, lpSolveAPI, reshape2, stats | 
| Published: | 2019-03-22 | 
| DOI: | 10.32614/CRAN.package.xxIRT | 
| Author: | Xiao Luo [aut, cre] | 
| Maintainer: | Xiao Luo <xluo1986 at gmail.com> | 
| BugReports: | https://github.com/xluo11/xxIRT/issues | 
| License: | GPL (≥ 3) | 
| URL: | https://github.com/xluo11/xxIRT | 
| NeedsCompilation: | no | 
| In views: | Psychometrics | 
| CRAN checks: | xxIRT results | 
| Reference manual: | xxIRT.html , xxIRT.pdf | 
| Package source: | xxIRT_2.1.2.tar.gz | 
| Windows binaries: | r-devel: xxIRT_2.1.2.zip, r-release: xxIRT_2.1.2.zip, r-oldrel: xxIRT_2.1.2.zip | 
| macOS binaries: | r-release (arm64): xxIRT_2.1.2.tgz, r-oldrel (arm64): xxIRT_2.1.2.tgz, r-release (x86_64): xxIRT_2.1.2.tgz, r-oldrel (x86_64): xxIRT_2.1.2.tgz | 
| Old sources: | xxIRT archive | 
Please use the canonical form https://CRAN.R-project.org/package=xxIRT to link to this page.