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deltaPlotR (version 1.3)

Identification of dichotomous differential item functioning (DIF) using Angoff's Delta Plot method

Description

The deltaPlotR package proposes an implementation of Angoff's Delta Plot method to detect dichotomous DIF. Several detection thresholds are included, either from multivariate normality assumption or by prior determination. Item purification is supported.

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Version

Install

install.packages('deltaPlotR')

Monthly Downloads

848

Version

1.3

License

GPL (>= 2)

Maintainer

David Magis

Last Published

July 22nd, 2013

Functions in deltaPlotR (1.3)

diagPlot

Plot of the Deltas points from the Delta Plot method
deltaPlot

Delta Plot method for dichotomous DIF
adjustExtreme

Adjusting the proportions of correct responses for extreme cases
deltaPlotR-package

Identification of dichotomous differential item functioning (DIF) using Angoff's Delta Plot method