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

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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.

Author
Francesco Bartolucci, Silvia Bacci - University of Perugia (IT)
Date of publication
2016-08-06 17:42:47
Maintainer
Francesco Bartolucci <bart@stat.unipg.it>
License
GPL (>= 2)
Version
2.1

View on CRAN

Man pages

blkdiag
Build block diagonal matrices
coef.est_multi_poly_between
Display the estimated model parameters of...
coef.est_multi_poly_within
Display the estimated model parameters of...
confint.est_multi_poly_between
Display the estimated confidence intervals of the model...
confint.est_multi_poly_within
Display the estimated confidence intervals of the model...
est_multi_glob_genZ
Fit marginal regression models for categorical responses
est_multi_poly_between
Estimate latent class item response theory (LC-IRT) models...
est_multi_poly_within
Estimate latent class item response theory (LC-IRT) models...
lk_obs_score_between
Compute observed log-likelihood and score
lk_obs_score_within
Compute observed log-likelihood and score
logLik.est_multi_poly_between
Display the log-likelihood at convergence of...
logLik.est_multi_poly_within
Display the log-likelihood at convergence of...
MLCIRTwithin-package
Latent Class Item Response Theory (LC-IRT) Models under...
print.est_multi_poly_between
Print the output of est_multi_poly_between object
print.est_multi_poly_within
Print the call of est_multi_poly_within object
prob_multi_glob_gen
Global probabilities
RLMS
RLMS dataset
search.model_between
Search for the global maximum of the log-likelihood of...
search.model_within
Search for the global maximum of the log-likelihood of...
SF12
SF12 dataset
SF12_nomiss
SF12 dataset without missing responses
summary.est_multi_poly_between
Print the output of est_multi_poly_between object
summary.est_multi_poly_within
Print the output of est_multi_poly_within object
vcov.est_multi_poly_between
Display the estimated variance-and-covariance matrix of...
vcov.est_multi_poly_within
Display the estimated variance-and-covariance matrix of...

Files in this package

MLCIRTwithin
MLCIRTwithin/NAMESPACE
MLCIRTwithin/data
MLCIRTwithin/data/SF12.RData
MLCIRTwithin/data/SF12_nomiss.RData
MLCIRTwithin/data/RLMS.RData
MLCIRTwithin/R
MLCIRTwithin/R/prob_multi_glob_gen.R
MLCIRTwithin/R/confint.est_multi_poly_within.R
MLCIRTwithin/R/est_multi_glob_genZ.R
MLCIRTwithin/R/lk_obs_score_between.R
MLCIRTwithin/R/lk_obs_score_within.R
MLCIRTwithin/R/search.model_within.R
MLCIRTwithin/R/coef.est_multi_poly_between.R
MLCIRTwithin/R/logLik.est_multi_poly_between.R
MLCIRTwithin/R/print.est_multi_poly_within.R
MLCIRTwithin/R/coef.est_multi_poly_within.R
MLCIRTwithin/R/vcov.est_multi_poly_between.R
MLCIRTwithin/R/summary.est_multi_poly_within.R
MLCIRTwithin/R/est_multi_poly_within.R
MLCIRTwithin/R/search.model_between.R
MLCIRTwithin/R/est_multi_poly_between.R
MLCIRTwithin/R/summary.est_multi_poly_between.R
MLCIRTwithin/R/vcov.est_multi_poly_within.R
MLCIRTwithin/R/logLik.est_multi_poly_within.R
MLCIRTwithin/R/print.est_multi_poly_between.R
MLCIRTwithin/R/blkdiag.R
MLCIRTwithin/R/confint.est_multi_poly_between.R
MLCIRTwithin/MD5
MLCIRTwithin/DESCRIPTION
MLCIRTwithin/man
MLCIRTwithin/man/print.est_multi_poly_within.Rd
MLCIRTwithin/man/coef.est_multi_poly_within.Rd
MLCIRTwithin/man/est_multi_poly_between.Rd
MLCIRTwithin/man/blkdiag.Rd
MLCIRTwithin/man/logLik.est_multi_poly_between.Rd
MLCIRTwithin/man/confint.est_multi_poly_within.Rd
MLCIRTwithin/man/print.est_multi_poly_between.Rd
MLCIRTwithin/man/summary.est_multi_poly_within.Rd
MLCIRTwithin/man/SF12_nomiss.Rd
MLCIRTwithin/man/SF12.Rd
MLCIRTwithin/man/vcov.est_multi_poly_within.Rd
MLCIRTwithin/man/coef.est_multi_poly_between.Rd
MLCIRTwithin/man/prob_multi_glob_gen.Rd
MLCIRTwithin/man/lk_obs_score_between.Rd
MLCIRTwithin/man/summary.est_multi_poly_between.Rd
MLCIRTwithin/man/est_multi_glob_genZ.Rd
MLCIRTwithin/man/confint.est_multi_poly_between.Rd
MLCIRTwithin/man/vcov.est_multi_poly_between.Rd
MLCIRTwithin/man/MLCIRTwithin-package.Rd
MLCIRTwithin/man/lk_obs_score_within.Rd
MLCIRTwithin/man/logLik.est_multi_poly_within.Rd
MLCIRTwithin/man/RLMS.Rd
MLCIRTwithin/man/est_multi_poly_within.Rd
MLCIRTwithin/man/search.model_between.Rd
MLCIRTwithin/man/search.model_within.Rd