libirt

Item Response Theory Library


MODELS | METHODS | LICENSE | DOWNLOAD | APPLICATIONS | DOCUMENTATION | AUTHORS | THANKS | REFERENCES | FRANÇAIS


The Item Response Theory Library (libirt) is a set of functions written in C to estimate the items and abilities from the responses of subjects to a questionnaire.

While two command line programs ("irt" and "mirt") are also provided, the library is mostly being used in others applications.

MODELS

METHODS

The parametric estimators are:

The nonparametric estimators are:

The abilities estimators are:

LICENSE

libirt is developed as a free software, released under the terms of the GNU Public License (GPL).

DOWNLOAD

The latest version is available at the project page at SourceForge.net.

APPLICATIONS

Applications using this library:

DOCUMENTATION

The developper's documentation is available online. The latest version can be built from the source using Doxygen.

AUTHORS

THANKS

libirt uses the numerical routines of the GNU Scientific Library (GSL).

REFERENCES

For information concerning the models and methods:

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