which is a practical introduction to Item Response Theory (IRT), is
composed of six parts:
This tutorial is designed for novices, and thus, the orientation of
this guide is conceptual and practical. Technical terms and mathematical
formulas are omitted as much as possible. Since some concepts are
interrelated, readers are encouraged to go through the tutorial in a
sequential manner. You can pause and rewind any slide at any moment.
Each slide has a navigation bar at the bottom. The function of each
button is revealed upon mouse over.