The hardware and bandwidth for this mirror is donated by dogado GmbH, the Webhosting and Full Service-Cloud Provider. Check out our Wordpress Tutorial.
If you wish to report a bug, or if you are interested in having us mirror your free-software or open-source project, please feel free to contact us at mirror[@]dogado.de.
Item response theory based methods are used to compute linking constants and conduct chain linking of unidimensional or multidimensional tests for multiple groups under a common item design. The unidimensional methods include the Mean/Mean, Mean/Sigma, Haebara, and Stocking-Lord methods for dichotomous (1PL, 2PL and 3PL) and/or polytomous (graded response, partial credit/generalized partial credit, nominal, and multiple-choice model) items. The multidimensional methods include the least squares method and extensions of the Haebara and Stocking-Lord method using single or multiple dilation parameters for multidimensional extensions of all the unidimensional dichotomous and polytomous item response models. The package also includes functions for importing item and/or ability parameters from common IRT software, conducting IRT true score and observed score equating, and plotting item response curves/surfaces, vector plots, information plots, and comparison plots for examining parameter drift.
| Version: | 1.5-1 |
| Depends: | R (≥ 3.3.3), methods, lattice |
| Imports: | MASS, statmod |
| Published: | 2017-04-26 |
| Author: | Jonathan P. Weeks |
| Maintainer: | Jonathan P. Weeks <weeksjp at gmail.com> |
| License: | GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] |
| NeedsCompilation: | no |
| Citation: | plink citation info |
| Materials: | NEWS |
| CRAN checks: | plink results |
| Reference manual: | plink.pdf |
| Vignettes: |
plink: An R Package for Linking Mixed-Format Tests Using IRT-Based Methods |
| Package source: | plink_1.5-1.tar.gz |
| Windows binaries: | r-devel: plink_1.5-1.zip, r-release: plink_1.5-1.zip, r-oldrel: plink_1.5-1.zip |
| macOS binaries: | r-release (arm64): plink_1.5-1.tgz, r-oldrel (arm64): plink_1.5-1.tgz, r-release (x86_64): plink_1.5-1.tgz, r-oldrel (x86_64): plink_1.5-1.tgz |
| Old sources: | plink archive |
| Reverse imports: | PROsetta |
| Reverse suggests: | mirt |
Please use the canonical form https://CRAN.R-project.org/package=plink to link to this page.
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.