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classicaltest (version 0.7.5)

Classical Test Theory (CTT) Analysis

Description

Functions for classical test theory analysis, following methods presented by Wu et al. (2006) .

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Version

Install

install.packages('classicaltest')

Monthly Downloads

183

Version

0.7.5

License

GPL (>= 2.0)

Maintainer

Andrés Christiansen

Last Published

June 19th, 2025

Functions in classicaltest (0.7.5)

dichodata

Simulated multiple choice data with 1000 cases, and 20 items
distractors

Distractor statistics
ctperson

Classical test theory person statistics
ctitem

Classical test theory item statistics
correct

Scoring correct/incorrect answers
dichotomize

Dichotomize data
classicaltest

Classical test theory item and person statistics
alphatest

Reliability measures
itemmean

Item mean scores
pointbiserial

Point-biserial correlation
dichokey

Keys for dichodata
polydata

Simulated polytomous items data with 1000 cases, and 20 items
discrimination

Item discrimination
partialkey

Keys for partialdata
stcov

Population and sample (co)variance
ctsem.alpha

Standard error of measurement (SEM)
partialdata

Simulated multiple choice data with 1000 cases, and 20 items and partial credits