Intra subject CV consideration [Power / Sample Size]

posted by Ohlbe – France, 2010-04-14 17:32 (5911 d 09:21 ago) – Posting: # 5130
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Dear Sriraj,

❝ Obviously the CV% would differ, but my question is- can we consider the

❝ intra CV% from Study-1 to evaluate the sample size for Study-2.


How do you plan to do it ? For example if you have an intra-CV of 25 % in the first study and you expect it to be higher in the second, what are you going to do ? You only know it will be more than 25 %, but you still don't know how much more, and therefore how many extra subjects you need.

Rasheed, you're saying it is possible. Can you explain what your suggestion would be ?

Regards
Ohlbe

Regards
Ohlbe

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