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RegisterSample size for replicate crossover studies [Power / Sample Size]
Hi,
For sample size calculation in the case of full replicate design using R software, when specifying the 2x2x4 in the script, do we get the same sample size whether the design is to be : TRTR|RTRT or TRRT|RTTR. And same question for the partially replicated design TRT|RTR vs TRR|RTT.
In the same way for manual computation, can we use the sample size formula presented by CHOW for the TRRT|RTTR design to calculate the sample size for TRTR|RTRT design. And same question, could the sample size formula of TRR|RTT design be used for TRT|RTR design.
Thanks a lot.
For sample size calculation in the case of full replicate design using R software, when specifying the 2x2x4 in the script, do we get the same sample size whether the design is to be : TRTR|RTRT or TRRT|RTTR. And same question for the partially replicated design TRT|RTR vs TRR|RTT.
In the same way for manual computation, can we use the sample size formula presented by CHOW for the TRRT|RTTR design to calculate the sample size for TRTR|RTRT design. And same question, could the sample size formula of TRR|RTT design be used for TRT|RTR design.
Thanks a lot.
Complete thread:
- Sample size for replicate crossover studiesImph 2023-03-06 14:29 [Power / Sample Size]
![[Mix]](https://static.bebac.at/img/mix.png "open in Mix view")
- Sample size for replicate crossover studies dshah 2023-03-06 15:40
- Sample size for replicate crossover studies Helmut 2023-03-06 16:48
- Sample size for replicate crossover studies Imph 2023-03-07 11:30
Ing. Helmut Schütz