CTT: Classical Test Theory Functions

A collection of common test and item analyses from a classical test theory (CTT) framework. Analyses can be applied to both dichotomous and polytomous data. Functions provide reliability analyses (alpha), item statistics, disctractor analyses, disattenuated correlations, scoring routines, and empirical ICCs.

Version: 2.3
Published: 2017-11-03
Author: John T. Willse
Maintainer: John T. Willse <willse at uncg.edu>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: no
In views: Psychometrics
CRAN checks: CTT results

Downloads:

Reference manual: CTT.pdf
Package source: CTT_2.3.tar.gz
Windows binaries: r-devel: CTT_2.3.zip, r-release: CTT_2.3.zip, r-oldrel: CTT_2.3.zip
OS X El Capitan binaries: r-release: CTT_2.3.tgz
OS X Mavericks binaries: r-oldrel: CTT_2.3.tgz
Old sources: CTT archive

Reverse dependencies:

Reverse depends: difNLR, subscore
Reverse imports: CTTShiny, IRTShiny, ShinyItemAnalysis

Linking:

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