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Determining the Optimum Number of Tasks and Sample Size in Conjoint Analysis

How do I determine the optimum number of tasks and sample size in a conjoint or discrete choice exercise?

This is actually one of the toughest questions in conjoint analysis, as there isn't just a simple formula to follow.  The topic is discussed more in dept in the "Sample Size Issues in Conjoint Analysis" paper in the General section of our Technical Papers Library.

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