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PsyControl (version 1.0.0.0)

CUSUM Person Fit Statistics

Description

Person fit statistics based on Quality Control measures are provided for questionnaires and tests given a specified IRT model. Statistics based on Cumulative Sum (CUSUM) charts are provided. Options are given for banks with polytomous and dichotomous data.

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Version

Install

install.packages('PsyControl')

Monthly Downloads

150

Version

1.0.0.0

License

GPL-2

Maintainer

Maxwell Hong

Last Published

August 9th, 2017

Functions in PsyControl (1.0.0.0)

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.
exGRM

Example data set based on a simulated GRM model.
gh

Example data set based on a simulated GRM model.
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.
cusum.flag

Flags aberrant participants based on CUSUM statistics.
cusum.plot

Generates CUSUM plot for specified IDs.