I interpret Dap's post as referring to titles of studies or discussion of results in which an author uses the term 'effect' to infer some causal outcome that is not warranted by the methodology used. As such, I agree that this type of use is incorrect and have pointed this out a few times that I have seen its inappropriate use in papers that I have refereed.
Miguel ________________________________________ From: Stuart McKelvie [smcke...@ubishops.ca] Sent: Tuesday, July 18, 2017 3:26 PM To: Teaching in the Psychological Sciences (TIPS) Subject: RE: [tips] Opinions needed Good point, Chris! We certainly have statistically significant effects……. So I wonder what Dap meant by “effect”? From: Christopher Green [mailto:chri...@yorku.ca] Sent: July-18-17 3:24 PM To: Teaching in the Psychological Sciences (TIPS) Subject: Re: [tips] Opinions needed Must an “effect” always be a causal effect? Is it not also reasonable to speak of a statistical effect, so long as we keep the two meanings distinct? Chris ….. Christopher D Green Department of Psychology York University Toronto, ON M3J 1P3 Canada 43.773895°, -79.503670° chri...@yorku.ca<mailto:chri...@yorku.ca> http://www.yorku.ca/christo orcid.org/0000-0002-6027-6709 ………………………………... On Jul 18, 2017, at 2:55 PM, Stuart McKelvie <smcke...@ubishops.ca<mailto:smcke...@ubishops.ca>> wrote: Dear Dap and Tipsters, Here is my opinion: The term “effect” is sometimes used loosely and wrongly when correlational research has been conducted. A better term in this case would be “relationship”. It has been argued that longitudinal studies may permit the term “effect” if they are based on sophisticated correlational designs with statistical controls (e.g. path analysis), but this is by no means accepted. In any case, longitudinal designs are not usually of this kind. The major problem is that longitudinal design are usually involve subject variables. The gold standard for studies that demonstrate cause and effect is the true experimental design. Of course, if does not guarantee that a causal relationship has been demonstrated, but it is our best bet, in my opinion. Sincerely, Stuart ___________________________________________________________________________ "Floreat Labore" <image010.jpg> "Recti cultus pectora roborant" Stuart J. McKelvie, Ph.D., Phone: 819 822 9600 x 2402 Department of Psychology, Fax: 819 822 9661 Bishop's University, 2600 rue College, Sherbrooke, Québec J1M 1Z7, Canada. E-mail: stuart.mckel...@ubishops.ca<mailto:stuart.mckel...@ubishops.ca> (or smcke...@ubishops.ca<mailto:smcke...@ubishops.ca>) Bishop's University Psychology Department Web Page: http://www.ubishops.ca/ccc/div/soc/psy Floreat Labore" <image011.jpg> <image012.jpg> ___________________________________________________________________________ From: Dap Louw [mailto:lou...@ufs.ac.za] Sent: July-18-17 2:28 PM To: Teaching in the Psychological Sciences (TIPS) Subject: [tips] Opinions needed Tipsters I am well aware that (and often frustrated by) all sorts of buzz words, concepts, theories, etc become the flavour of the month/year in organizations, including universities. I would therefore appreciate your viewpoint on the following, especially as research methodology is not my field of specialization: To what extent can we measure ‘effect’? In the last 40 years in Psychology I’ve been involved in hundreds of studies on “The effect of ……… (television on …; poverty on ….., etc, etc)”. BTW, when I used ‘ “the effect of" psychology’ in Google Scholar search I got 2 460 000 results. However: According to the latest recommendations of our University’s Research Committee we cannot measure effect unless you make use of especially the longitudinal design. Therefore any title such as “The effect of ……… (television on …; poverty on ….., etc, etc)” is unacceptable and should be replaced by “the perceived effect of …..” or something similar. Is this a case of methodology or semantics? I look forward to hearing from you. It’s high time to get the TIPS ball rolling again! Regards from this side of the ocean. 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