what is experimental design for multilevel model can you test multilevel models of random effects what is an experimental design what is a mixed effect model what is the experimental design for a multilevel which is considered an experiment? what is the difference between varb and vara what is the difference in varA and varb in a mixed models why is vara different than varb in multi level what does mixed effects mean how to test the relationship between variables in multilevel model how to design experiments for mixed effects what is the difference between vara and varb what is a multilevel model? what is model design what is the experimental design for multilevel modeling what is experimental design what is mixed effects model how to test multilevel model what is mixed multilevel model?