Thanks. Interesting, but it doesn’t really get at the heart of the problem here, of mistaken interpretation of a “failure to reject” result as confirmation of the null hypothesis, thereby privileging the null. That just shouldn’t happen, but often does.
I saw the Gigerenzer 2004 paper (you’re talking about the Null Ritual paper, right?) earlier today, and it rang a few bells. Definitely liked the chart about the delusions surrounding p=0.01. Appalling that even the profs did so poorly.
of mistaken interpretation of a “failure to reject” result as confirmation of the null hypothesis, thereby privileging the null.
Isn’t that a major criticism of NHST, that almost all users and interpreters of it reverse the conditionality—a fallacy/confusion pointed by Cohen, Gigerenzer, and almost every paper I cited there?
I think that’s a separate mistake. This paper shows Pr[data|H0] > 0.05. The standard mistake you refer to switches this to falsely conclude Pr[H0|data] > 0.05. However, neither of these is remotely indicative of H0 being true.
Thanks. Interesting, but it doesn’t really get at the heart of the problem here, of mistaken interpretation of a “failure to reject” result as confirmation of the null hypothesis, thereby privileging the null. That just shouldn’t happen, but often does.
I saw the Gigerenzer 2004 paper (you’re talking about the Null Ritual paper, right?) earlier today, and it rang a few bells. Definitely liked the chart about the delusions surrounding p=0.01. Appalling that even the profs did so poorly.
GG has another 2004 paper with a similar theme: The Journal of Socio-Economics 33 (2004) 587–606 Mindless statistics http://people.umass.edu/~bioep740/yr2009/topics/Gigerenzer-jSoc-Econ-1994.pdf
Isn’t that a major criticism of NHST, that almost all users and interpreters of it reverse the conditionality—a fallacy/confusion pointed by Cohen, Gigerenzer, and almost every paper I cited there?
I think that’s a separate mistake. This paper shows Pr[data|H0] > 0.05. The standard mistake you refer to switches this to falsely conclude Pr[H0|data] > 0.05. However, neither of these is remotely indicative of H0 being true.