On 12 Aug 2008 at 13:58, Christopher D. Green wrote:

> Psychologists, sad to say, have often been a little over-reaching in
> their assertions of certainty, and so have occasionally claimed "laws" > in 
> an attempt to boost their scientific status.

Such is the case for the Yerkes-Dodson Law, which is no law at all. The
original work supposedly validating it did no such thing, and later
research had no better success. I recall the abstract of one paper which
failed to support the "law":

         There is a flaw
         In the evidence for
        The Yerkes-Dodson law.
           To call it "ubiquitous"
            Is pretty iniquitous

Brown, P. (1965). The Yerkes-Dodson law repealed.  Psychological Reports,
17, 663-666


This, BTW, is one of only two papers I am aware of in which the abstract
is written in verse. The other, ahem, is mine.

Chen and Haviland-Jones claim if you're down
You needn't be depressed and mope around
Check out Granny's smell
It'll make you feel well
One problem: no supporting evidence was found

Black, S.L. (2001). Does smelling granny relieve depressive mood?
Commentary on `Rapid mood change and human odors'. Biological Psychology,
55, 215-218.

Stephen

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Stephen L. Black, Ph.D.
Professor of Psychology, Emeritus
Bishop's University      e-mail:  [EMAIL PROTECTED]
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