On Fri, 18 Aug 2000, Stephen Black went:

> Those who teach experimental psychology and research design might
> want to ponder the philosophical implications of a disturbing new
> study just published in the British Medical Journal by Taylor et
> al (2000).
> 
> (at http://bmj.com/cgi/content/short/321/7259/471)

"Great minds" and all that:  I'd seen the same article this morning
and I'd considered posting the URL to TIPS.

> What's the problem? It's that homeopathy is biological nonsense, as
> it uses as a curative agent a substance so diluted that no molecules
> of it can exist in the administered product. So the philosophical
> problem is to reconcile convincing empirical evidence with the
> knowledge that the finding is not understandable according to known
> scientific principles.

Agreed on all counts, but...

> Distasteful as it may be, in such cases the possibility of fraud
> must be considered.

...not agreed on this count.  The f-word can end a career, and thus it
can be used to intimidate researchers whose results make us
uncomfortable.  For a not-so-nice example involving controlled
drinking in alcoholics, see http://www.peele.net/lib/glass.html.  I
realize that this case is different because the results appear to
violate our understanding of the physical universe.  Even so, I think
the most reasonable response is the one that ends your post:

> This finding deserves attention but not yet acceptance. What is
> needed now is an exact replication by an independent group of
> researchers with no ties to homeopathy.

...back to agreeing on all counts.  There's a difference between fraud
(on the one hand) and inadvertent contamination of results by
researcher allegiance (on the other).

--David Epstein
  [EMAIL PROTECTED]

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