Item Response Theory Demo Collection

Includes a collection of shiny applications to demonstrate or to explore fundamental item response theory (IRT) concepts such as estimation, scoring, and multidimensional IRT models.

Item Response Theory Demo Collection

The package can be installed and loaded as:

install.packages("irtDemo")
library(irtDemo)

Example usage:

irtDemo("eapmap")
irtDemo("mirt")
irtDemo("mle")
irtDemo("est2pl")
irtDemo("est3pl")

Shiny web applications:
https://irtdemo.shinyapps.io/eapmap/
https://irtdemo.shinyapps.io/mirt/
https://irtdemo.shinyapps.io/mlest/
https://irtdemo.shinyapps.io/est2pl/
https://irtdemo.shinyapps.io/est3pl/

Bulus, M., & Bonifay, W. (2022). irtDemo R Package: Pedagogical Interactive Web Applications for Estimation, Scoring, and Multi Dimensionality in Item Response Theory. Anadolu University Journal of Education Faculty, 6(1), 92-108. https://doi.org/10.34056/aujef.913781