I have been asking a number of separate questions as each are unique in themselves but connected to my learning process in running mixed effects models. I apologise if i am becoming a nuisance.
Basically I learned how to run a model correctly using lme4 (an lmer) and as I had many factors I was then able to use the MuMIn package to identify those models that best explained y rather than having to run them all by hand. I would like to better understand Effect and then 95% CI using the model.avg command.
I have 9 factors (including the random but not y). After using the dredge command I ran:
where dd is the data.frame from the dredge command (i.e. all possible combinations of factors in the global model). I ended up with 14 models listed (out of over 200), although only the top two had a delta<2.
I know that papers will often report the importance of these factors, so would it be advisable to find the Estimate and 95% CI for all the factors for all 14 models or should I just look at those factors within the top two models (ie with a delta<2)? I think the two models is what other papers have done.
Could someone tell me how to do this? Do I run all models that are in the top (either 2 or 14) and then use the avg.model command? Could someone let me know what the code is for this?
In addition, once I do this, would it be okay to then list my results below so that someone could help me decipher what they mean? I don't have a deep understanding of the intricacies, but it would be helpful for me to be able to further explain the magnitude of the effects of the most important factors rather than just the weights of the models themselves. I understand AICc and weights, but not the t values and such that come after each model.
I appreciate everyone's patience with me in this.