What does Maximum Difference Scaling mean?
Maximum Difference Scaling, also known as MaxDiff Scaling, is an extremely efficient method for determining preference differences between a certain number of similar characteristics or things (preference measurement) and can be seen as an extension of the simple pairwise comparison developed by the psychologist and physicist Gustav Theodor Fechner. In maximum difference scaling, which is also often referred to as best-worst scaling, the study participants are shown a specific selection from a set of items to be evaluated, whereby the respondents must select the item they prefer and the item they prefer least. In the end, a meaningful preference model is created from all the answers given by the respondents. The maximum difference scaling can be carried out quickly and easily with the help of the predefined question types of the max-diff analysis in QuestionPro.
Maximum Difference Scaling:
This is how easy it is with QuestionPro
Step1: You create a new question in the QuestionPro user interface and click on “Advanced Questions” and then select under Choice Models -> Max-Diff Analysis.
Step 2: The question editor opens. Here you enter the question, the description of the respective characteristics and the corresponding items to be evaluated. For visualisation purposes, pictures or symbols can also be uploaded for the respective items.
Step 3: Next, specify the maximum number of attributes to be displayed to the respondents and the maximum number of attributes to be assessed at all, as well as the repetition rate.
Step 4: In the preview you can now see the look & feel of your Maximum Difference Scaling. You can of course adapt the design to your individual wishes using the CSS editor.
Step 5: Here you can see an example of an extended evaluation that you receive when you use QuestionPro’s Maximum Difference Scaling procedure. Here, too, you can define individual evaluations!
Example questionnaire with real-time evaluation
Here you can find an example questionnaire for Maximum Difference Scaling incl. real-time evaluation!
→ Maximum Difference Scaling – Example