Yeah - I think it's intentional. It's a pain to do but usually gives a better result without middle options.
On the PAC test I came highest on the adult, none on the parent but quite high on the child!! Well I always knew that I like to jump in puddles!!
I don't see confidence as a major issue but I quite like the way they break it up into different areas rather than just 'confident' versus 'unconfident' - it makes much more sense to me that way. I quite like thinking I can work on an area of confidence that isn't that strong without viewing my whole self as underconfident (which I don't think is true).