Xcalibre empowers any organization to implement item response theory (IRT) – a machine learning approach used by all large-scale assessment organizations to make their tests more precise and defensible.
Sign Up For Free Version
Xcalibre 4 is available as a free version limited to 50 items and 50 examinees. This allows you to get familiar with the program immediately, and start learning the advanced methods of item response theory. Please fill out the form on the left to sign up, and you will receive a link to download Xcalibre.