"obtain balanced groups" vs randomisation [BE/BA News]

posted by ElMaestro  – Denmark, 2020-12-23 09:12 (704 d 00:07 ago) – Posting: # 22156
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Hi all,


This is a very tricky way to write something for clarification.
It is like they give you a choice - Do you want to randomise or do you want to "obtain balanced groups" ? On average (whatever the hell that means) plain randomisation assures balance, but randomisation does not in any individual case guarantee balance. Perhaps they meant to combine stratification with randomisation. Or what?

Had they written "it is extremely important to aim for balanced groups" then I'd get the point. But that would not change anything from today's practice, as all CRO's to the best of my knowledge are randomising.
What is it they really tried to clarify? And how do I do comply?

Pass or fail!
ElMaestro

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