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Each combination of factor levels is a profile. Trying to obtain information about preferences by having every respondent sample every possible profile is not practical. However, you can ask a respondent to select a preferred profile from a choice set consisting of a small number of profiles.
Select DOE > Consumer Studies > Choice Design.
Select Help > Sample Data Library and open Design Experiment/Coffee Choice
Figure 18.2 Choice Design Window with Attributes Defined
Click Continue.
Keep the Number of attributes that can change within a choice set at 4.
Keep the Number of profiles per choice set at 2.
Type 12 for the Number of choice sets per survey.
Keep the Number of surveys at 1.
Type 10 for the Expected number of respondents per survey.
Figure 18.3 Completed Design Generation Panel
Note: Setting the Random Seed in step 7 reproduces the exact results shown in this example. In constructing a design on your own, this step is not necessary.
(Optional) Click the Choice Design red triangle and select Set Random Seed. Type 12345 and click OK.
Click Make Design.
Select Output separate tables for profiles and responses.
Click Make Table.
The Choice Profiles table shows the 12 choice sets, each consisting of two profiles. The Choice Runs table enables you to record the preferred profile in the column Response using the profile ID. Enter 1 if Choise1 is the preferred profile or 2 if Choice 2 is the preferred profile. Alternatively, if the respondent has no preference, leave the response missing.
The Choice script in the Choice Profiles table facilitates analysis of experimental results. It opens a completed launch window for a Choice Model. For information about Choice Models, see Choice Models in the Consumer Research book.
The DOE Dialog script in the Choice Profiles table relaunches the design dialog.

Help created on 3/19/2020