On 6 Jan 2011 at 11:12, Bourgeois, Dr. Martin wrote: Bem also used one-tailed tests, which seems curious for a paper testing extraordinary claims.
That's interesting, disturbing, in fact. I've long argued that one- tailed tests are almost uniformly misused in psychology and should be banned. Making a one-sided prediction is insufficient justification. One should only be allowed to use a one-tailed test if one can plausibly argue that not only do I not predict a result in the "wrong" tail, but that if such a perverse result occurred, it would either be meaningless or of no interest at all. O In the comparisons used by Bem, a result falling in the wrong tail would certainly be of interest. Perhaps his findings illustrate what can happen if one abuses one-tailed tests. I also said: > > As for Mike's title, I don't think physics colleagues have much to > snicker about, not when you remind them of the Bogdanov twins > ( http://tinyurl.com/29gnz6l ) and the polywater debacle. I forgot to mention cold fusion. Stephen -------------------------------------------- Stephen L. Black, Ph.D. Professor of Psychology, Emeritus Bishop's University Sherbrooke, Quebec, Canada e-mail: sblack at ubishops.ca --------------------------------------------- --- You are currently subscribed to tips as: arch...@jab.org. To unsubscribe click here: http://fsulist.frostburg.edu/u?id=13090.68da6e6e5325aa33287ff385b70df5d5&n=T&l=tips&o=7717 or send a blank email to leave-7717-13090.68da6e6e5325aa33287ff385b70df...@fsulist.frostburg.edu
