Xcalibre
Item Response Theory… but user-friendly & automated.
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.
Upgrade to Full Version
To upgrade to full functionality, click the button below or contact sales@assess.com.
What is Xcalibre?
User-Friendly
All options are displayed in a clean, simple interface. No coding skills required!
Automated Reports
Save hours of time – Xcalibre copies and pastes all the tables/graphs into a narrative report for you
IRT Models
Supports all major IRT models out of the box – dichotomous or polytomous
Flexible & Powerful
Analyze large data sets, perform equating studies, improve items with classical distractor analysis
How is IRT better than Classical Test Theory?
Stronger Science
Designed specifically to address important psychometric issues
Better Equating
Superior at equating multiple forms/years
Enables CAT
IRT enables computerized adaptive testing (CAT)
Sample-Independent
Classical test theory results are notoriously sample-specific
Better Measurement
More precise scores, for more examinees
Designed to help more practitioners implement IRT
The point-and click interface means that you spend more time on improving your assessment, not fighting with code errors
Output that is easy to read
Clear, concise tables, embedded graphics, and explanatory narratives – plus it is all in Word so you can easily annotate results!