[R] coxme AIC score and p-value mismatch??

[David Bickel]

  You noticed that the AIC increases while the p-value decreases as you 
change the model and hold the data fixed. There would be more indication 
of a problem if you instead noticed the same relationship between the 
AIC and the p-value as you changed the data and held the model fixed.

David


On 22/08/2010 1:04 AM, Teresa Iglesias wrote:
> Hi,
> I am new to R and AIC scores but what I get from coxme seems wrong. The AIC
> score increases as p-values decrease.
> Since lower AIC scores mean better models and lower p-values mean stronger
> effects or differences then shouldn't they change in the same direction? I
> found this happens with the data set rats as well as my own data. Below is
> the output for two models constructed with the rats data set.