Well, no, there are a couple of intervals that don't include 0 and those are the ones they report. Other than that, this does look like a pretty poor study. Th

Well, no, there are a couple of intervals that don't include 0 and those are the ones they report. Other than that, this does look like a pretty poor study. They do that classic (but misguided) thing where they say that their study was conducted on a small sample and so the fact that they found anything at all is super-duper-extra telling. In reality, it just makes it more likely that any effect that is reported will be exaggerated – as was brilliantly pointed out by Andrew Gelman and John Carlin in http://www.stat.columbia.edu/~gelman/research/published/retropower_final.pdf http://www.stat.columbia.edu/~gelman/research/published/retr....