catIrt: An R Package for Simulating IRT-Based Computerized Adaptive Tests

Functions designed to simulate data that conform to basic unidimensional IRT models (for now 3-parameter binary response models and graded response models) along with Post-Hoc CAT simulations of those models with various item selection methods, ability estimation methods, and termination criteria.

Install the latest version of this package by entering the following in R:
AuthorSteven W. Nydick
Date of publication2014-10-05 07:43:12
MaintainerSteven W. Nydick <>
LicenseGPL (>= 2)

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