Investigating the quality of items in CAT using nonparametric IRT

R.R. Meijer

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Abstract

I discuss the applicability of nonparametric item response theory (IRT) models to the quality of item pool development in the context of CAT, and I contrast these models with parametric IRT models. I also show how nonparametric IRT models can easily be applied and how misleading results from parametric IRT models can be avoided. I recommend the use of nonparametric IRT modeling to routinely investigate the quality of item pools.
Original languageUndefined
Place of PublicationNewton, PA, USA
PublisherLaw School Admission Council
Number of pages9
Publication statusPublished - Mar 2004

Publication series

NameLSAC research report series
PublisherLaw School Admission Council
No.04-05

Keywords

  • IR-104264

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