for a good treatment of this issue ... levels of measurement and statistics
to use ... though, it is not real simple ...
see
ftp://ftp.sas.com/pub/neural/measurement.html
warren sarle of SAS wrote this and, it is excellent
forget about scales and statistics for a moment ... what kinds of
STATEMENTS do you want to be able to make ... about measurement variables
... THAT is the real issue ... and whether you should pay attention to
levels of measurement and statistics ...
At 09:18 AM 7/25/01 -0700, Alex Yu wrote:
>The following is extracted from one of my webpage. Hope it can help:
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