ltm: Latent Trait Models under IRT

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 <[email protected]>
MaintainerDimitris Rizopoulos <[email protected]>
LicenseGPL (>= 2)
Version1.1-1
URL https://github.com/drizopoulos/ltm
Package repositoryView on CRAN
Installation Install the latest version of this package by entering the following in R:
install.packages("ltm")

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ltm documentation built on April 17, 2018, 9:04 a.m.