ltm (1.0-0)

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Latent Trait Models under IRT.

http://rwiki.sciviews.org/doku.php?id=packages:cran:ltm
http://cran.r-project.org/web/packages/ltm

Analysis of multivariate dichotomous and polytomous data using latent trait models under the Item Response Theory approach. It includes the Rasch, the Two-Parameter Logistic, the Birnbaum's Three-Parameter, the Graded Response, and the Generalized Partial Credit Models.

Maintainer: Dimitris Rizopoulos
Author(s): Dimitris Rizopoulos <d.rizopoulos@erasmusmc.nl>

License: GPL (>= 2)

Uses: MASS, msm, polycor
Reverse depends: difR, IMTest, infutil, irtoys, kequate, lordif, pcaPA, PerFit, QVM
Reverse suggests: catIrt, equateIRT, latdiag, sirt

Released over 3 years ago.


12 previous versions

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