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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.

Versions across snapshots

VersionRepositoryFileSize
2.3.4 2026-04-09 windows/windows R-4.5 CTT_2.3.4.zip 84.0 KiB