Hi,
I have a question concerning goodness of fit which is measured as QIC in the GEE analysis:
In general I learned that if QIC decreases the change in the model was for the better. => Decrease in QIC = Good
However, I am trying to add new model terms and for all of them QIC increases. Is QIC only decreasing when there is a change in the structure of the working correlation matrix or as well if I add model terms.
Does anybody find my mistake ?
Thank you
Laura
I have a question concerning goodness of fit which is measured as QIC in the GEE analysis:
In general I learned that if QIC decreases the change in the model was for the better. => Decrease in QIC = Good
However, I am trying to add new model terms and for all of them QIC increases. Is QIC only decreasing when there is a change in the structure of the working correlation matrix or as well if I add model terms.
Does anybody find my mistake ?
Thank you
Laura