Comment by mattkrause
4 years ago
I don't think you should sneer at a triple-digit sample size that's justified with a power analysis based on their previous work.
I agree that you'd want to see replications before making any major decisions--these effects are often finnicky--but this seems to me like a reasonable-sized step forward.
They also had a prior justification for running this experiment based on known effects of Tylenol on the brain.