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A choice-based conjoint asks participants to choose between products described by attributes, such as brand, format and price. Prepare the attributes and levels around the decision you need to study.

Configure and check the design

Add a conjoint question in the questionnaire. Define attributes and their levels, including images where relevant. Numeric attributes can represent price. Check which attributes are estimated and which are displayed as labels only. Choose a generated design or upload a design file. In a design file, each row represents one product in a task; identify version, task, product and attribute columns in the import preview. Review the mapping before applying it. Fixed tasks are evaluated separately from the tasks used to estimate preferences. Run the design check before fieldwork. Review prohibited combinations and any attributes that apply only to certain products.

Test the participant experience

Open a participant test. Check every product’s wording, images, numeric units and any none-of-these or purchase follow-up wording. Test desktop and mobile layouts and the transitions into and out of the exercise.

Check the result

Compare the saved configuration with the source brief and inspect actual test tasks. An uploaded design’s versions are reused as respondents arrive; they are not a limit on sample size.