On Thursday, October 10, 2013 7:08:03 PM UTC-4, Rich Ulrich wrote:
<...some confirmations that small p-values do not demonstrate a lack difference, and that the use of large p-values may be due to historical lack of understanding, which may be improving...>
> As a very general rule, p-levels are not good indicators of effect > size. Or, conversely, for lack-of-effect size. N is the huge > confounder, plus, it depends on how sensitive your test is for > finding an "effect."
Understood. I'm just focusing on acceptance/rejection of H0. > > When you want to show similarity, you want to show a narrow CI on > some relevant difference, for some meaningful measure... not merely > an absence of "demonstrated" difference. Crappy measures can give > you apparent similarities.
My understanding is that narrow CI can only show lack of evidence against H0, but can never show the evidence for H0.