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Back to the forum  Query: 2018-02-26 00:53 CET (UTC+1h)
 

forced BE? [Design Issues]

posted by ElMaestro - Denmark, 2017-08-07 13:44  - Posting: # 17668
Views: 3,005

Hi Hötzi,

» (blahblah) The basis of these estimates should also be given. It is important to investigate the sensitivity of the sample size estimate to a variety of deviations from these assumptions and this may be facilitated by providing a range of sample sizes appropriate for a reasonable range of deviations from assumptions. In confirmatory trials, assumptions should normally be based on published data or on the results of earlier trials.

Yessir!!!!!!!!
Thanks for bringing it up.

That is indeed why we need to apply more bootstrapping in BE.

It, too, tells what sample size we need, but in contrast to ordinary power calcs it allows one to take into account that residuals may not be normal even though the evaluation itself makes that assumption. And that is a story for another day.

I could be wrong, but…


Best regards,
ElMaestro

- Bootstrapping for dissolution data is a relatively new hobby of mine.

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