Michael J. Kane
Thu, 07 Sep 2000 15:08:59 -0700
Hi all, Chuck Huff wrote: >Colleagues, >I have recently read the controversial paper by Daryl Bem on his >meta-analytic strategy to confirm a reliable psi- effect. It can be found at: > >http://www.psych.cornell.edu/dbem/online_pubs.html > >This seems to me to constitute what we would call a replicable >effect. Yes, there are some (pretty complicated) alternative explanations. In fact, the effect is not so replicable. Milton & Wiseman (1999; Psych Bulletin) did a follow-up meta-analysis of 30 ganzfeld studies conducted since 1987 (the Bem & Honorton paper was published in 1984). The data came from 14 papers out of 7 different labs, and included 1,198 individual trials. Hit rates were NOT significantly different from chance. In addition, several "sub-plots" that were suggested to be significant in the Bem & Honorton analyses (such as dynamic targets allowing better psi-information-transfer than do static targets) were not replicated in the more recent data. -Mike ************************************************ Michael J. Kane Department of Psychology P.O. Box 26164 University of North Carolina at Greensboro Greensboro, NC 27402-6164 email: [EMAIL PROTECTED] phone: 336-256-1022 fax: 336-334-5066