Lets try to understand what is discriminant and conjoint analysis conceptually ?
Discriminant
analysis
is most often used to help a researcher predict the group or category to which
a subject belongs. For example, when applicants are interviewed for admission
to international universities, admission team will not know for sure how applicants
will perform in the program if taken. Suppose, however, if their I.T. dept. has
a list of current students who have been classified into two groups:
"high performers" and "low performers." These individuals
have been in the university for past few years, and have been evaluated by the professors,
and are known to fall into one of these two mutually exclusive categories. The academic
dept. also has information on the students’ backgrounds: pre educational
attainment, prior work experience, participation in training programs, team attitude
measures, personality characteristics, and so forth. This information was known
at the time these students were enrolled. The university wants to be able to
predict, with some confidence, which future applicants are high performers and
which are not. A researcher or consultant can use discriminant analysis, along
with existing data, to help in this task.
Conjoint Analysis is an
experimental quantitative technique that simulates decision situations customers
regularly face. For eg: While choosing
an apparel or a car which feature or attribute should be given higher weightage,
this varies from person to person but as a marketer if we want to know then we
have to perform this analysis in order to get a correct guess of which attribute
would be weighted higher. Types of this analysis are 1.)Choice-Based Conjoint
(CBC)
2.)Adaptive
Conjoint Analysis (ACA)
3.) MaxDiff. These are the most commonly used
tools.
These types of analysis provide insights that
help companies decide on the optimal set of features that will deliver higher
levels of satisfaction to the customer. Consumer researchers have also used
conjoint analysis to evaluate the importance of an attribute in forming
preferences. Although past researchers have tested the validity and reliability
of the overall conjoint analysis results, some of the properties of the
individual importance weights have remained unknown.
by
Abhik Chakraborty
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