Post hoc power? [Power / Sample Size]

posted by BE-proff – 2016-12-04 22:46 (2987 d 17:35 ago) – Posting: # 16834
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Hi Helmut,

I should confess - it was fictitious "study" just to show calculations :-D

But is it correct that post hoc power calculations are not necessary?

What to do if post hoc power is 65% while a study protocol requires at least 80%? :confused:

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