Okay, it is your survey.........
I would not trust the answers to any survey that asks negative questions, too much room for confusion and errors.
Maybe I take things too literally, but it is often the same in general conversation nowadays.
You said you basically agree with me, however if I was to ask you.......
Steve, do you not agree with what I said?
Maybe not you but most people would probably answer something like .......
Yes of course.
Which literally means you do NOT agree.