raschreg-package: Item Response Theory regression models.

In nando11235813/raschreg: Item Response Theory models including explanatory variables of the ability parameter

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 <[e-mail]>

Examples

  ## 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 Oct. 2, 2021, 3:11 p.m.