Quotation Mair, Patrick, Hatzinger, Reinhold. 2010. New developments for extended Rasch modeling in R.. useR! The R User Conference 2010, Maryland, Vereinigte Staaten/USA, 20.07-23.7..




The eRm package allows for the computation of extended Rasch models. This package implements the Rasch model, the linear logistic test model (LLTM), the linear logistic model with relaxed assumptions (LLRA), the (linear) rating scale model (RSM and LRSM), and the (linear) partial credit model (PCM and LPCM). Conditional maximum likelihood estimation (CML) is used for item parameter estimation. Various model diagnostics such as Andersens LR-test, item-fit and person-fit statistics, graphical model tests, exact model tests, etc. are available. In this talk we give an overview of recent developments and implementations.


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Publication's profile

Status of publication Published
Affiliation WU
Type of publication Paper presented at an academic conference or symposium
Language English
Title New developments for extended Rasch modeling in R.
Event useR! The R User Conference 2010
Year 2010
Date 20.07-23.7.
Country United States/USA
Location Maryland
URL http://www.r-project.org/conferences/useR-2010/program.html


Mair, Patrick (Former researcher)
Hatzinger, Reinhold (Former researcher)
Institute for Statistics and Mathematics IN (Details)
Competence Center for Empirical Research Methods WE (Details)
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