alt Hacker NewsPerhaps in an “everyday language” way, but not in the technical, statistical sense.
In an underpowered statistical study, a claim that two experimental conditions did not differ are not persuasive.
Perhaps in an “everyday language” way, but not in the technical, statistical sense.
In an underpowered statistical study, a claim that two experimental conditions did not differ are not persuasive.
No. It's a description of the result of the maybe underpowered study. the underpowered study did not find evidence. Evidence is absent. Because it is underpowered, it's not evidence that the effect is absent.
The claim is not "two experimental conditions did not differ". The claim is "The data do not show evidence that the experimental conditions did differ".