That's generally not how things go. I don't know the details of this exact thing, but generally there will be two "very yes" responses, a "kinda yes", a "kinda no", and to "very no". You throw out all the "kinda"s and pay attention to the "very"s. 25% "very no" is a serious black eye, it's probably like 60% "kinda"s.
As someone who studied some formal logic and some psychology, I have to say that providing the "Not very accurately" option is both bad logic and bad research methodology.
