Timeline for How many observations do you need within each level of a random factor to fit a random effect?
Current License: CC BY-SA 3.0
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| Aug 12, 2013 at 20:35 | comment | added | jay | i.e. I don't mind dropping the sites with only two counts – there aren't that many of them – but what I am concerned about is the fact that three observations per random effect level may not be enough to properly fit a GLMM. Cheers | |
| Aug 12, 2013 at 20:17 | comment | added | jay | Hi momeara, thanks for that info. You're suggesting I do what seems to be a fairly sophisticated analysis (for my level of expertise). I take it that this means that it's inappropriate to use a more straightforward approach (e.g. Running a "standard" GLMM using lme4 in R) with only 3 observations within each level of the random effect? Cheers | |
| Aug 9, 2013 at 0:08 | history | answered | momeara | CC BY-SA 3.0 |