raschreg-package: Item Response Theory regression models.

Description Author(s) Examples

Description

Provides a set of functions to estimate, simulate and visualize Item Response Theroy models such as: Rasch model, Rasch model with a common discrimination parameter and the Two Parameter Logistic model). Inclusion of regression effects of the ability paramters are allowed. Marginal log-likelihood is approximated using the Laplace method.

Author(s)

Maintainer: Fernando Massa <fmassa@iesta.edu.uy>

Examples

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  ## Not run: 
     library(raschreg)
     data(odont_ncd)
     items <- odont_ncd[,c('pocket', 'loa', 'decay', 'f_dentition')]
     mod <- raschreg(items, ~ age + sex_f, odont_ncd)
     summary(mod)
     forest(mod)
  
## End(Not run)

nando11235813/raschreg documentation built on Dec. 15, 2020, 3:43 a.m.