--On Saturday, March 18, 2000, 4:59 PM -0800 JosX Carlos
<jrocha@convoy.com.br> wrote:
> I'm help a friend who's working in analysis
> of business data. The data was acquired from a questionnaire.
> Each question has a set of answers and the the user marks
> one of that. Futhermore, the answers are made in some way
> that the second involves the first, third involves the
> second, and so on.
> I wold like to know if is correct treat this data
> how mutually exclusive. If it's incorrect could any one
> gimme some suggestion.
JosX,
Assuming that each data record is collected from a different individual, I
don't see any reason for not assuming that they are independent.
As far as answers to individual questions are concerned, the answers seem
to be dependent. When learning a Bayesian network model for these data,
you can model this dependence as a-priori knowledge (forced arcs).
Hope this helps,
Marek
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Marek J. Druzdzel http://www.pitt.edu/~druzdzel
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