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DIF PCM analysis with panel figure output for items' average locations

Source: R/dif.R
RIdifFigureLR.Rd

Makes use of the eRm package function LRtest(). Outputs a panel of figures with item average locations and 95% confidence intervals.

Usage

RIdifFigureLR(dfin, dif.var)

Arguments

dfin

Dataframe with item data only

dif.var

DIF variable

Details

DIF variables need to be factors with the same length as the number of rows in the dataset.

sample usage: RIdifTableE(df, dif.age)