Applications of Item Response Theory in R

Example item characteristic curve

This workshop provides an overview for applying Item Response Theory (IRT) models in R. This includes estimating IRT models, visualizing the estimated parameters, calculating test-level characteristics, and evaluating model fit. The IRT analyses are primarily conducted using the {mirt} package. Along the way, we introduce several tidyverse functions for transforming ( {dplyr}) and visualizing ( {ggplot2}) data.

See the workshop websites for more, including links to the GitHub repositories for all workshop materials.

Senior Psychometrician

I’m a psychometrician and educational assessment researcher who loves using R to learn from data.