Mokken Scale Analysis in R.

Using the R package mokken, you can do Mokken scale analysis in R. The package can do (almost) everything that MSP can do, plus it includes the new developments in the last decade. Some useful links

• New to R? The report Getting started with Mokken scale analysis in R (Van der Ark, 2010) can help.
• New to Mokken scale analysis? Read the following papers and the references therein:
  • Van der Ark, L. A. (2007). Mokken scale analysis in R. Journal of Statistical Software, 20 (11), 1-19. paper
  • Van der Ark, L. A. (2012). New developments in Mokken scale analysis in R. Journal of Statistical Software, 48(5), 1-27. paper
• Website for mokken on CRAN