Hi, I have the following questions:
Z19v What's your personal income?
- Income [Open Answer]
- Do not want to say
Z20v What's your household income?
-Income [Open Answer]
-Do not want to say
I don't want to let people say that they have a smaller household income than their personal income.
I made Z19v and Z20v selected question type, but now I don't know how to validate they answers and not let them to fill in any value for the income.
Can you help me please? Should I change the question type?