CUSUM Person Fit Statistics
Generates critical values for CUSUM statisitcs.
Flags aberrant participants based on CUSUM statistics.
Generates CUSUM plot for specified IDs.
Generates CUSUM values for polytomous IRT model based on Van Krimpen-S...
Generates CUSUM values for Rasch, 2PL and 3PL IRT model based on the V...
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.