# CopyDetect v1.2

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## 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.

## Functions in CopyDetect

 Name Description CopyDetect2 Answer Copying Indices for Nominal Response Items simulated.data Simulated Data Based on Nominal Response IRT Model (Bock, 1972) ipar Nominal Response Model Item Parameters CopyDetect1 Anwer Copying Indices for Dcihotomously Scored Items No Results!