I used to make two points about drawing conclusions from statistical
analysis:
1. One must distinguish between statistical and clinical
significance, and
2. The related point that statistical significance is most
important when you want to draw conclusions about a population, while
clinical significance is important if you want to draw a conclusion
about an individual. Small but statistically significant effects
don't help the clinician much.
On Mar 21, 2010, at 10:22 AM, <[email protected]>
<[email protected]> wrote:
Alerted by a colleague, I recommend an instructive if
depressing essay on the problematic use of statistics in science.
http://www.sciencenews.org/view/feature/id/57091/title/Odds_ar
e,_its_w or http://tinyurl.com/yh7sk7r
Teaser:
"Supposedly, the proper use of statistics makes relying on
scientific results a safe bet. But in practice, widespread misuse
of statistical methods makes science more like a crapshoot."
Stephen
--------------------------------------------
Stephen L. Black, Ph.D.
Professor of Psychology, Emeritus
Bishop's University
e-mail: sblack at ubishops.ca
2600 College St.
Sherbrooke QC J1M 1Z7
Canada
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Paul Brandon
Emeritus Professor of Psychology
Minnesota State University, Mankato
[email protected]
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