Conducts Mokken Scale Analysis
Automated Item Selection Procedure (AISP) for Mokken Scale Analysis
Check the relative lower bound for scalability coefficients
Check conditional association to indentify local dependence.
Check the number of Guttman errors (Gplus) and the number of infrequen...
Check of Invariant Item Ordering
Check of Monotonicity
Standard errors for norm statistics
Check of Nonintersection Using Method Pmatrix
Computation of reliability statistics
Check of Nonintersection Using Method Restscore
Scalability coefficents H
Computation of Z-Values
Intraclass correlation
Two-level scalability coefficents H
Computation of Z-Values for two-level scalability coefficients
Weights for Guttman Errors in two-level test data
Mokken Scale Analysis
Plot iio.class objects
Plot monotonicity.class objects
Plot pmatrix.class objects
Plot restscore.class objects
Recodes negatively worded items
Summarize iio.class objects
Summarize monotonicity.class objects
Summarize pmatrix.class objects
Summarize restscore.class objects
Two-way imputation
Contains functions for performing Mokken scale analysis on test and questionnaire data. It includes an automated item selection algorithm, and various checks of model assumptions.