Re: correlation/regression and causation

2000-10-21 Thread dennis roberts
At 09:43 PM 10/21/00 -0400, Karl L. Wuensch wrote: >You all may find this hard to believe, but, in my experience, a large >proportion of social scientists have the delusion that if you conduct a >traditional two-group t-test, then you are qualified to make causal >inferences (that is, varianc

correlation/regression and causation

2000-10-21 Thread Karl L. Wuensch
Eric noted: "While I certainly agree that many textbooks convey the absolutely misleading impression that the "PBC" is some special form of measure, I think that the usual formula presented for it is pedagogically useful in a few ways (not that the typical textbook makes use of them):1) It demons