Looking at a picture of Clever Hans on Wikipedia,
the horse's reins are draped across his back.
The handler is standing on the other side of the horse, with his
hands obscured.
If he (or Bertrand's handler) was in fact holding the reins, that
would be one source of a subtle cue.
On Mar 5, 2009, at 3:27 PM, [email protected] wrote:
.... Clever Bertrand could
do everything that Clever Hans could do. There was only one difference
between the two horses: Clever Bertrand was totally blind."
This is undoubtedly the first literally true blind study, and seems to
rule out the Clever Hans effect. So how did Clever Bertrand do it?
Paul Brandon
Emeritus Professor of Psychology
Minnesota State University, Mankato
[email protected]
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