Package: plink
Version: 0.1-0
Date: 2008-09-26
Title: IRT Separate Calibration Linking Methods
Depends: R (>= 2.7.2), methods, statmod, lattice
Author: Jonathan Weeks <weeksjp@gmail.com>
Maintainer: Jonathan Weeks <weeksjp@gmail.com>
Description: This package uses item response theory methods to compute linking constants and conduct
chain linking of tests for multiple groups under a nonequivalent groups common item design.
It allows for mean/mean, mean/sigma, Haebara, and Stocking-Lord calibrations of dichotomous
(1PL, 2PL, and 3PL) and/or polytomous (graded response, partial credit/generalized partial
credit, nominal, and multiple-choice model) common items.
LazyLoad: Yes
LazyData: Yes
License: GPL (>= 2)
Packaged: Fri Sep 26 09:02:17 2008; Jonathan Weeks

Package: plink
Version: 0.1-1
Date: 2009-01-26
Title: IRT Separate Calibration Linking Methods
Depends: R (>= 2.7.2), methods, statmod, lattice
Author: Jonathan Weeks <weeksjp@gmail.com>
Maintainer: Jonathan Weeks <weeksjp@gmail.com>
Description: This package uses item response theory methods to compute linking constants and conduct
chain linking of tests for multiple groups under a nonequivalent groups common item design.
It allows for mean/mean, mean/sigma, Haebara, and Stocking-Lord calibrations of dichotomous
(1PL, 2PL, and 3PL) and/or polytomous (graded response, partial credit/generalized partial
credit, nominal, and multiple-choice model) common items.
LazyLoad: Yes
LazyData: Yes
License: GPL (>= 2)
Packaged: Mon Jan 26 12:53:47 2009; Jonathan Weeks

Package: plink
Version: 1.0.0
Date: 2009-04-10
Title: IRT Separate Calibration Linking Methods
Depends: R (>= 2.7.2), methods, statmod, lattice, MASS
Author: Jonathan P. Weeks <weeksjp@gmail.com>
Maintainer: Jonathan P. Weeks <weeksjp@gmail.com>
Description: This package uses item response theory methods to compute
linking constants and conduct chain linking of unidimensional
or multidimensional tests for multiple groups under a
nonequivalent groups 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 Reckase-Martineau method
and extensions of the Haebara and Stocking-Lord method using a
single dilation parameter, multiple dilation parameters, or the
Oshima, Davey, & Lee approach 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 and ploting item characteristic/category curves or
surfaces and vector plots.
LazyLoad: Yes
LazyData: Yes
License: GPL (>= 2)
Packaged: 2009-04-19 14:53:43 UTC; Jonathan Weeks
Repository: CRAN
Date/Publication: 2009-04-19 18:08:01