CFA                     Testing measurement & structural models for
                        dichotomous and polytomous data
FA                      Run exploratory factor analysis for dichotomous
                        and polytomous data
INTERNAL                Run exploratory factor analysis for dichotomous
                        and polytomous data
IRT                     Item calibration according to item response
                        theory models
ITEMAN                  Item and test statistics based on classical
                        test theory,
PCA                     Run principal component analysis for
                        dichotomous and polytomous data
SIMDATA                 Generate simulated data according to IRT for
                        dichotomous and polytomous data Generate
                        multidimensional data for factor analysis #
                        param options(java.parameters = "-Xmx8000m")
