Sample size/power for PD BE study 3-way crossover [Power / Sample Size]

posted by ElMaestro  – Denmark, 2011-03-30 15:48 (5568 d 06:04 ago) – Posting: # 6834
Views: 10,508

Hey Coja66,

          Gr1  Gr2   Gr3
period 1: T    R1    R1
period 2: R1   T     R2
period 3: R2   R2    T


I would do that!

❝ for testing T vs R1 in crossover for period 1/2, Gr1/2, and for testing T vs R2 in crossover for period 2/3, Gr2/3. But I suppose there are a lot of snags involved in a design like this.


Sorry, that doesn't compute. Could you explain your thinking?

Sample size is pretty unexplored territory as far as I know for this method. I'll try and ask W.H. later today if he knows how to do it. I would imagine that sample size methods would only exist for parametric approaches.

❝ Best regards from sunny Netherlands.


Best regards from a cold and grey Washington.

Pass or fail!
ElMaestro

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