Computing power (1-beta) for GLMM in SPSS How do I compute power (1-beta) for GLMM in SPSS?
Thanks.

In your situation, power depends on the link function, the distribution family, the model forms of both the fixed and the random effects, the distribution of predictors, the relationship between the predictors and the outcome, and the null hypothesis.
There is almost certainly no closed form solution to your problem. and probably also no built-in function.
I recommend simulation.
