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arnesen
2006 Oct 24
1
Variance Component/ICC Confidence Intervals via Bootstrap or Jackknife
...sure if I understand
exactly how to do it. The way I've tried to do a bootstrap estimate is
to sample with replacement for i units, then sample with replacement the
j(i) units, and then finally sample with replacement the k(j(i)) units.
But the few references I've been able to track down (Arvesen, Biometrcs,
1970 is one), seem to say that I should just sample with replacement the
i units. Plus they seem to indicate that a log transform is needed. The
Arvesen reference used something like using log(v_a/v_e) as an estimator
for sigma_a^2/sigma_e^2 and getting an interval and then transforming...