README.md

rcrtan

Build Status

rcrtan provides functions for criterion-referenced test analyses as described in Brown & Hudson (2002). Currently it supports the following item and test analyses:

Installation & Documentation

Get the development version from github:

install.packages('devtools')
devtools::install_github('gtlaflair/rcrtan')

Item analysis functions

This package contains six unique functions for calculating item statistics and one omnibus function for estimating all of the six unique functions. The formulas have been adapted from Brown and Hudson (2002).

item_stats <- crt_iteman(data = brown_depend, items = 2:31, raw_cut_score = 21, scale = 'raw')

Test dependability functions

This package contains two functions for estimating test dependability. The formulas have been adapted from Brown and Hudson (2002).

sub_estimate <- subkoviak(data = brown_depend, items = 2:31, raw_cut_score = 21, look_up = FALSE)

phi_estimate <- short_phi(data = brown_depend, items  = 2:31)


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rcrtan documentation built on May 2, 2019, 2:10 a.m.