eRm -
extended Rasch modelling
resources page
CRAN: http://cran.r-project.org/web/packages/eRm/
Installation in R
copy and paste into R:
install.packages("eRm",repos="http://r-forge.r-project.org")
Documents
Conference contributions and talks
Publications
- Mair, P., and Hatzinger, R. (2007).
Extended Rasch modeling: The eRm package for the application
of IRT models in R.
Journal of Statistical
Software, 20(9), 1-20.
- Mair, P., and Hatzinger, R. (2007).
CML based estimation of extended Rasch models with the eRm
package in R.
Psychology Science,
49, 26-43.
- Hatzinger, R., and Rusch T. (2009).
IRT models with relaxed assumptions in eRm:
A manual-like instruction
Psychology Science Quarterly, Volume 51, 2009 (1), pp. 87 - 120
Data Sets
(pdf of the original version)
eRm
Documents
R Documents