R help - May 2007 - lmer and scale parameter in glmm model

Hi all,

I try to fit a glmm model with binomial distribution and I would to
verify that the scale parameter is close to 1...

the lmer function gives the following result :
Estimated scale (compare to  1 )  0.766783

But I would like to know how this estimation (0.766783) is performed, 
and I would
like to know if it is possible to find this estimation with the 
different results given by the function lmer.

Thanks,
Olivier.