[R-sig-ME] 3 level multivariate mixed effects IRT model

Benjamin Michael Kelcey bkelcey at umich.edu
Wed Apr 29 22:46:25 CEST 2009

Dear List,

Is anyone aware of how to implement a three level multivariate mixed  
effects IRT (2 parameter) model in lme4 or another package? I have  
found literature concerning the Rasch model using the lme4 package  
(e.g. Estimating the Multilevle Rasch Model) and a 2 level using the  
mlirt package but have not been able to find examples using both. Any  
suggestions would be much appreciated.

Thank you,

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