Hi, all. I need to do a power calculation for a study that will
contain two levels of clustering; there will be repeat dichotomous
outcomes for individuals who will be clustered within families. While
the documentation shows to use post() to specify the number of repeat
outcomes in a dataset, I'm left with two questions:
1) What if the number of repeat observations will vary by respondent?
I have a postulated distribution for the number of observations that
will take place.
2) How to handle nesting by family in the power calculation?
If this isn't handled by -sampsi- it seems that I could do a series of
simulations. But I'd feel pretty silly doing that if there's a simpler
method that I don't know about.
Thanks!
Ted White
Yale University Center for Interdisciplinary Research on AIDS
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