Max Differential Scale
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Max Differential Scale

VIDEO: Max Differential Scale Question

The max differential scale question type lets you ask respondents to select the best and worst from among a set of variables. You can edit the best and worst choices labels to be whatever you’d like. For example, have respondents select a restaurant they are mostly likely or least likely to eat at. You can also specify a set size for your variables, and show your respondents multiple sets and have them pick the best and worst option in each.

max differential scale

To set up a max differential scale question:

  1. Drag and drop a max differential scale question from the Advanced Questions section of the palette to the canvas.
  2. Phrase your question in the Question Title and optionally add an Extra Description.
  3. By default the question’s choices are Best and Worst, change these labels in the Choices section. Respondents will only be able to select one variable for each of the two choices.
  4. By default the question has two variables. Add more using the + Add button in the Variables section. You can also use the Bulk option or Extraction to add variables.
  5. If you want to break your variables up into sets where respondents can pick a best and worst choice per set, select a Set Size, how many variables are in each set, and Max Sets limit, how many sets are show to each respondent, in Options. If your set size is smaller than your number of sets, each respondent will see different sets.
  6. Select Optional to make the question optional.
  7. Configure Display settings for the question. See below for details.
  8. Save your survey.


Column SizeAdjust the width between your choices and variables.
Append to previous questionUse this to make this question appear as if it’s part of the previous question.
Extra ClassesAdvanced option to define classes for custom javascript or CSS.
Alternate Background ColorGive each column an alternating background color.


Set SizeSplits variables into sets of options. Select how many variables are in each set.
Max SetsHow many sets are show to each respondent. If you have more sets than you are showing, different respondents will see different sets.
OptionalMakes question optional.