Item Response Theory

Multilevel Semiparametric Latent Variable Modeling in R with "galamm"

Øystein Sørensen

This paper presents the R package "galamm", which contains open-source implementations for generalized additive latent and mixed models (GALAMMs). Published in Multivariate Behavioral Research.

• generalized additive models
• item response theory
• mixed models
• mixed response
• R