Using Zelig in R I fitted a negative binomial model to my data. The psychology APA standard demands to report the overall R squared, F-Value and p-value for the whole model.
I looked at the formula for R square and it is using sum of squares. Since the negative binomial model is not using least square method assuming a linear model, does it make sense here to report any R squared?
If not, could I argue in my paper that reporting R square is non-sense or not possible?
If yes, how can I calculate an equivalent R Squared, and how can I perform the F-Test to report the demanded numbers?