Sample Size Replicated Study [Power / Sample Size]

posted by Helmut Homepage – Vienna, Austria, 2008-08-18 13:57 (6513 d 09:22 ago) – Posting: # 2195
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Dear Ashwini,

❝ Can we calculate the sample size for Replicate 3 period (ABB/BAA) & Replicate 4 period (ABBA/BAAB) on the basis of Intra CV got in 2way crossover study. Could you please tell me by what amount or percentage it will reduce for 3 way and 4 way crossover study.


Yes; see this post for TRT/RTR (75% of TR/RT) and TRRT/RTTR (50% of TR/RT).
No idea about TRR/RTT...

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