Before using a tick box in place of a yes/no or a single selection field, you should consider reading the following blog:
When you add in Tick Field you must always add in two options into the field and click "update"
The first option will be the answer to the question if it is NOT ticked (e.g. No)
The second option will be the answer to the question if it IS ticked (e.g. Yes)
You can add in any type of options you require as long as you understand that the first option will display when it is unticked and the second when it is ticked
Tick Box Fields are used in some forms specifically to generate Important Fields to be pulled into Important Summary Fields.
Please read the section on Important Summary Fields to find out how to use a tick field to get a summary of fields to appear in the Important Summary Fields Field.