Replicated 4×2 and two-stage-design, in the same protocol [Two-Stage / GS Designs]
Hi Mauricio,
Combining 2-stage and replicated studies in one protocol is hitherto undescribed in the scientific literature. So you likely do not know how the type I error is controlled or how your method performs in terms of power/sample sizes. If the agency asks you to give proof that the Type I Error is controlled you might be somewhat doomed?
There appears to me to be no reason why it wouldn't work, though. It just needs to be investigated and reported.
❝ Is it possible? Or I am crazy in front of the statistic and statisticians?
Combining 2-stage and replicated studies in one protocol is hitherto undescribed in the scientific literature. So you likely do not know how the type I error is controlled or how your method performs in terms of power/sample sizes. If the agency asks you to give proof that the Type I Error is controlled you might be somewhat doomed?
There appears to me to be no reason why it wouldn't work, though. It just needs to be investigated and reported.
—
Pass or fail!
ElMaestro
Pass or fail!
ElMaestro
Complete thread:
- Replicated 4×2 and two-stage-design, in the same protocol Mauricio Sampaio 2015-04-06 08:37
- Replicated 4×2 and two-stage-design, in the same protocolElMaestro 2015-04-06 08:53
- Science fiction Helmut 2015-04-06 14:20
- Science fiction Dr_Dan 2016-03-04 10:33
- mindblowing ElMaestro 2016-10-11 07:44
- Natural constant as usual; not for reference-scaling Helmut 2016-10-11 09:50
- Consistency DavidManteigas 2016-10-11 11:25
- Natural constant as usual; not for reference-scaling Helmut 2016-10-11 09:50