Leslie,
The only article that comes into my mind is
American Psychological Society, "Do science museum exhibits really teach?",
Observer 4/6, 1991: 1, 22-23.
Even if it is not the one you are looking for I think it's worth reading.
Fritz
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Dr. Friedrich Waidacher
Klosterwiesgasse 44, A-8010 Graz, Austria, Tel/Fax +43/316/826264
Moenchegg 34, A-8742 St. Wolfgang-Kienberg, Austria, Tel/Fax +43/3578/8216
[log in to unmask]http://www.WebMuseen.de/Waidacher/
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~