[R-sig-ME] fixed vs random

[Iasonas Lamprianou]

thank you
good observation
Dr. Iasonas Lamprianou


Assistant Professor (Educational Research and Evaluation)
Department of Education Sciences
European University-Cyprus
P.O. Box 22006
1516 Nicosia
Cyprus 
Tel.: +357-22-713178
Fax: +357-22-590539


Honorary Research Fellow
Department of Education
The University of Manchester
Oxford Road, Manchester M13 9PL, UK
Tel. 0044  161 275 3485
iasonas.lamprianou at manchester.ac.uk


--- On Mon, 29/3/10, Stuart Luppescu <slu at ccsr.uchicago.edu> wrote:

> From: Stuart Luppescu <slu at ccsr.uchicago.edu>
> Subject: Re: [R-sig-ME] fixed vs random
> To: "Iasonas Lamprianou" <lamprianou at yahoo.com>
> Cc: r-sig-mixed-models at r-project.org
> Date: Monday, 29 March, 2010, 15:10
> On Sun, 2010-03-28 at 13:21 -0700,
> Iasonas Lamprianou wrote:
> > m1<- lmer(score ~ 1+(1+gender|candidate),
> mg2006_sub)
> 
> And the other unusual thing about this model, as was
> pointed out by 
> Doug Bates recently in another thread, is that without a
> fixed effect of
> gender, you're stipulating that the overall effect of
> gender is 0,
> leaving only the random effect. In this case, it might not
> be terrible
> (assuming gender is coded {0, 1}) but it might not be what
> you want,
> either.
> -- 
> Stuart Luppescu <slu at ccsr.uchicago.edu>
> University of Chicago
> 
>