[R-sig-ME] Using residuals to test for random effect

Max Reuter m.reuter at ucl.ac.uk
Wed Apr 6 09:09:00 CEST 2011


Hi Fabian,

Many thanks for your reply. I have installed lme4a yesterday and will have a look at the profiling.

All the best, Max


> Hi,
> 
> The fact that the results depend on the type of residuals you use sugest to
> me that the procedure is not trustworthy - I'm not aware of any paper
> investiating the properties of this approach. This also suggests that a
> statistical reviewer worth his/her salt would call you out on using
> something so completely ad-hoc.
> I'd go with a parametric bootstrap test of the variance component or the
> profiling approach that is implemented in lme4a.
> 
> Fabian Scheipl
> (author of RLRsim)




___________________________________________________________
Max Reuter
				         
Research Department of Genetics, Evolution and Environment
Faculty of Life Sciences
University College London
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