no doubt, the single-disciplinary researchers use bad statistics, too. My broader point is that multidisciplinary researchers are less likely to use statistics correctly, if for no other reason than that the fact that they are multidisciplinary means that they are less likely to be able to handle depth from a personality/self-habits point of view.

Perhaps that's a little bit of projection, but I don't use any but the most rudimentary statistics in my publications and I don't make claims about significance.