# Item Response Theory Demo Collection

The package can be installed and loaded as:
```{r}
install.packages("irtDemo")
library(irtDemo)
```
Example usage:
```{r}
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
