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xxIRT: Item Response Theory and Computer-Based Testing in R
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>.
Getting started
Browse package contents
Package details |
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|---|---|
| Author | Xiao Luo [aut, cre] |
| Maintainer | Xiao Luo <xluo1986@gmail.com> |
| License | GPL (>= 3) |
| Version | 2.1.2 |
| URL | https://github.com/xluo11/xxIRT |
| Package repository | View on CRAN |
| Installation |
Install the latest version of this package by entering the following in R:
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