itan: Item Analysis for Multiple Choice Tests

Functions for analyzing multiple choice items. These analyses include the convertion of student response into binaty data (correct/incorrect), the computation of the number of corrected responses and grade for each subject, the calculation of item difficulty and discrimination, the computation of the frecuency and point-biserial correlation for each distractor and the graphical analysis of each item.

Version: 1.0
Depends: ggplot2, reshape
Published: 2017-03-28
Author: Ariel Armijo Quiroz
Maintainer: Ariel Armijo Quiroz <arielarmijo at>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: no
Language: es
CRAN checks: itan results


Reference manual: itan.pdf
Package source: itan_1.0.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X El Capitan binaries: r-release: itan_1.0.tgz
OS X Mavericks binaries: r-oldrel: itan_1.0.tgz


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