Bioequivalence and Bioavailability Forum 11:02 CET

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Stop estimating post hoc power! [Power / Sample Size]

posted by kms.srinivas - India, 2017-12-26 13:00  - Posting: # 18085
Views: 16,540

» If the irrelevant post hoc power is always 98%, I suspect a flaw in the software (or SAS macro).
» If it is always higher than the one used in sample size estimation it may be a miscalculation – ineradicably “popular” in Indian CROs (see this post). Revise your procedures

I'm sorry, I mean to say always it is coming in the interval 95 to 99 and some times 100 ofcourse one time only, some times we are getting less power on 80s but very less times.


Edit: Full quote removed. Please delete everything from the text of the original poster which is not necessary in understanding your answer; see also this post #5! [Helmut]

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