I can't tell you how to solve your problem but I can suggest where to look.
Alan Agresti released a second edition to his book on categorical data
analysis early this year. One of the big updates to that book is a chapter
on Generalized Linear Mixed Models (GLMM). The good news is that random
effects for Probit models are explicitly referenced in the index. The bad
news is that the section referenced is a mathematical exercise for the
reader. 

 

Charles E. White, Biostatistician

Walter Reed Army Institute of Research

503 Robert Grant Ave., Room 1w102

Silver Spring, MD 20910-1557

301 319-9781

WRAIR Home Page: http://wrair-www.army.mil/

 


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