CFA | Testing measurement & structural models 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") |