Editing Conjoint analysis (section)

== Information collection ==
Data for conjoint analysis are most commonly gathered through a market research survey, although conjoint analysis can also be applied to a carefully designed [[configurator]] or data from an appropriately designed [[test market]] experiment. Market research rules of thumb apply with regard to statistical sample size and accuracy when designing conjoint analysis interviews.

The length of the conjoint questionnaire depends on the number of attributes to be assessed and the selected conjoint analysis method. A typical adaptive conjoint questionnaire with 20–25 attributes may take more than 30 minutes to complete. Choice based conjoint analysis, by using a smaller profile set distributed across the sample as a whole, may be completed in less than 15 minutes. Choice exercises may be displayed as a store front type layout or in some other simulated shopping environment.