User Guide
If you are unfamiliar with item analysis, or just want a refresher, please see our Shiny App Tutorial for Item Analysis (CTT).
Application
Using this Shiny App, you will be able to upload your own data and conduct item analysis with either continuous or categorical variables (binary and ordinal categorical). You will be able to obtain basic analysis information, including reliability estimates, item difficulty, and item discrimination (item-total correlations) based on classical test theory (CTT) framework.
Note. This Shiny App will take some time to display the results. Please wait after clicking on “run”.