CopyDetect: Computing Statistical Indices to Detect Answer Copying on Multiple-Choice Tests

Contains several IRT and non-IRT based statistical indices proposed in the literature for detecting answer copying on multiple-choice examinations. Includes the indices that have been shown as effective and reliable based on the simulation studies. Provides results for the Omega index, Generalized Binomial Test, K index, K1 and K2 indices, and S1 and S2 indices.

Install the latest version of this package by entering the following in R:
AuthorCengiz Zopluoglu
Date of publication2016-04-27 19:28:23
MaintainerCengiz Zopluoglu <>
LicenseGPL-3 | file LICENSE

View on CRAN

Questions? Problems? Suggestions? or email at

Please suggest features or report bugs with the GitHub issue tracker.

All documentation is copyright its authors; we didn't write any of that.