vcov.est_multi_poly_between

output from est_multi_poly_between

object

further arguments passed to or from other methods

Given the output from est_multi_poly_between, the estimated variance-and-covariance matrix is displayed

Framework for the Item Response Theory analysis of dichotomous and ordinal polytomous outcomes under the assumption of within-item multidimensionality and discreteness of the latent traits. The fitting algorithms allow for missing responses and for different item parametrizations and are based on the Expectation-Maximization paradigm. Individual covariates affecting the class weights may be included in the new version together with possibility of constraints on all model parameters.

vcov.est_multi_poly_between: Display the estimated variance-and-covariance matrix of est_multi_poly_between object

Description

Usage

Arguments