MLCIRTwithin (2.1)

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Latent Class Item Response Theory (LC-IRT) Models under Within-Item Multidimensionality.

http://cran.r-project.org/web/packages/MLCIRTwithin

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.

Maintainer: Francesco Bartolucci
Author(s): Francesco Bartolucci, Silvia Bacci - University of Perugia (IT)

License: GPL (>= 2)

Uses: limSolve, MASS, MultiLCIRT

Released 9 months ago.


3 previous versions

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