Xcalibre: Item Response Theory Software with User-Friendly UI and Automated Reports
Xcalibre makes IRT easy to implement. Automatically create item response theory tech reports in MS Word, complete with hundreds of embedded tables, graphs, and narratives. Navigate a straightforward UI with no 1980s command code. Save psychometrician time and costs!
Scroll down to download Xcalibre for free. Need a psychometrician to run the analysis? Get in touch!
Xcalibre: A Smarter Approach to Item Response Theory Software
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
More 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
Try Xcalibre for free, and start implementing IRT today
Xcalibre 4 is available as a trial version for evaluation, limited to 50 data points. This allows you to get familiar with the program immediately, and start learning the advanced methods of item response theory.
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Designed to help more practitioners implement Item Response Theory
The point-and click interface is a game-changer for IRT software: spend more time on evaluating and improving your assessment, not fighting with code errors. Simply select your files, IRT models, and other options, then click Run. Supports both dichotomous and polytomous items, including both at the same time.
Diagnose items with easy-to-read output
Clear, concise tables, embedded graphics, and explanatory narratives allow you to easily understand results. Includes comprehensive item response theory analysis at both the item and test level (TIF, TRF, etc.). Classical statistics are added where useful.
Moreover, it is all in Word so you can easily annotate results! Save hours of copy-and-paste from ASCII tables and manually created graphs from other software.
New to IRT? Click below to learn more about this powerful, modern approach to psychometrics.
I’m new to IRT. What is it, and why do I need it?
What is item response theory?
IRT is a family of machine learning models to analyze assessment data. It is based on the notion of an underlying trait or ability, generally called theta, and how the probability of a response is a nonlinear function of that. For multiple choice items on a knowledge test, this means that the probability of a correct answer is higher if you are smarter. For multi-point (polytomous) items, the item response function is more complex.
Why is IRT important?
There are some major theoretical advantages, most notably that it is sample independent, whereas classical test theory is framed around a single test form on a single sample.
When first running an IRT analysis, IRT is used to evaluate the test and the questions, more effectively than CTT. However, it provides solutions to many more big questions in assessment, such as how to ensure scores stay comparable across forms (equating), set cutscores (Bookmark Method), link across grade levels (vertical scaling), deal with sparse data matrices, and build adaptive tests.
Get in touch with one of our psychometricians to learn more.
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