Closed questions can have different formats. The following formats are most widely used.
The most frequently used format is a question which can be answered by "yes/no" or a number (age in years, number of sexual partners etc).
Did you travel to a foreign country in the last month? Please tick the right box.
Alternatively, a checklist can be provided:
The same information can be asked in a more detailed way in a rating scale:
The rating scale could be numerical:
Another option is the use of the Lickert scale to measure attitudes.
Sunburns cannot be avoided during outdoor activities.