How do I make sure that respondents don't give the same ranking to multiple options?

How do I make sure that respondents don't give the same ranking to multiple options?

If you think a respondent will follow a pattern and choose the same ranking for multiple variables in a matrix (one answer) question, enable the forced ranking option. This prevents your respondent from choosing the same ranking for more than one variable. 

To set up forced ranking:

  1. Click Matrix Choice (One Answer) question.
  2. Click Advanced options. 
  3. Select Force ranking (One response per column).
  4. Click Save.