You can set your questions as mandatory in the survey editor. This means that, when presented with a mandatory question, the respondent cannot continue until the question is answered.



To make a question mandatory:

1. Go to the 'Surveys' tab

2. Open an existing survey or create a new one

3. Click on an existing question or add a new one

4. Click 'Advanced options'

5. Click 'Make mandatory'

6. Remember to save your changes