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ltm (version 0.9-5)

Latent Trait Models under IRT

Description

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.

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Install

install.packages('ltm')

Monthly Downloads

7,783

Version

0.9-5

License

GPL (>= 2)

Last Published

September 30th, 2010

Functions in ltm (0.9-5)