I've run a GLMM with Gamma distribution and found a statistically significant effect of both of my independent variables. How do I run post hoc tests to examine these effects further?
The design is: I have two factors stimulation and temperature. The outcome is time until a response. I found a statistically significant effect for both factors. However, I further want to know direction of these effects. I am interested in further testing two things: if the response time is longer with stimulation; and if the response times are shorter with higher temperature.
I'm not sure if this is an appropriate application of posthoc tests, or should I just remark on the direction of effects in the first model?