CUSUM Person Fit Statistics


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Documentation for package ‘PsyControl’ version 1.0.0.0

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cusum Generates CUSUM values for Rasch, 2PL and 3PL IRT model based on the Van Krimpen-Stoop & Meijer, (2002).
cusum.cutoff Generates critical values for CUSUM statisitcs.
cusum.flag Flags aberrant participants based on CUSUM statistics.
cusum.plot Generates CUSUM plot for specified IDs.
cusum.poly Generates CUSUM values for polytomous IRT model based on Van Krimpen-Stoop & Meijer, (2002).
ex2PL Example data set based on a simulated 2PL model.
exGRM Example data set based on a simulated GRM model.
gh Example data set based on a simulated GRM model.