ltm: Latent Trait Models under IRT
Version 1.0-0

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.

Package details

AuthorDimitris Rizopoulos <>
Date of publication2013-12-20 10:59:19
MaintainerDimitris Rizopoulos <>
LicenseGPL (>= 2)
Package repositoryView on CRAN
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ltm documentation built on May 30, 2017, 5:29 a.m.