Hi,
We are designing an event-related study. We have four treatments and each
of these requires subjects to make a decision in a given situation. In
order to test if these treatments are different, do we need to repeat each
treatment with similar situations? Or can we get meaningful result by
simply having one-shot experiment on each treatment? If we have enough
number of subjects, can we tradeoff this with the repetition (if
necessary)?
Thanks.
Robin
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