An issues I always wondered about - "multiplicity" for power [Power / Sample Size]
Steven,
You are absolutely correct and the industry would be in a much better shape if its people were generally thinking like you.
Well done
❝ From my point of view, this may simply be a misleading finding due to chance, because, staying in that example, conducting three studies at a power of 80% will result in a fifty-fifty chance to have all of them being successful (0.8^3). By implication, it might even be reasonable to "overpower" each single study in order to end with an "overall power" of 80% (0.93^3 is roughly 80%).
You are absolutely correct and the industry would be in a much better shape if its people were generally thinking like you.
Well done

—
Pass or fail!
ElMaestro
Pass or fail!
ElMaestro
Complete thread:
- An issues I always wondered about - "multiplicity" for power Relaxation 2015-11-06 10:25 [Power / Sample Size]
- An issues I always wondered about - "multiplicity" for powerElMaestro 2015-11-06 10:39
- "multiplicity" for power d_labes 2015-11-06 13:52