Consider adding optional parameter to `QuestionList` that lets the user specify the format of the items in the list

[rbyh]

This could be useful where I want the responses to be numerical, but I don't want to manually put this instruction in the question text (and risk doing a bad job with the instruction).

Eg, this list of integers as strings is annoying to deal with and could be missed by the user:

[johnjosephhorton]

Would two options - "string" and "numerical" - capture most of the use cases?

[rbyh]

Yes I think that's sufficient