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agecat
2012 Jun 30
2
Significance of interaction depends on factor reference level - lmer/AIC model averaging
...hich indicate diet)
vary within a population of animals.
I have multiple measures from individuals (variable 'Tattoo') and multiple
individuals within social groups within 4 locations (A, B, C ,D) crucially I
am interested if there are differences between sexes and age classes
(variable AGECAT2) and whether this differs with location.
However, whether or not I get a significant sex:location interaction depends
on which location is my reference level and I cannot understand why this is
the case. It seems to be due to the fact that the standard error associated
with my interactions varies...