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R-cran-ltm
Jul 20, 2023
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.
See also https//github.com/drizopoulos/ltm
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