I find this interesting because grade inflation is real. There are so many straight A students that it loses it's value as a measure. But if you can do something without looking it up I would agree that is proficient.

A good team member is a larger force multiplier than a single rockstar.

I have found inverting this kind of question helps.

Rate your interest in the following:

Item A Item B

People tend to express high interest where they want to grow, or have need.

> To me the main problem is that I'm always afraid to put a 5, who can not check manuals? ;-)

Quite often I find that the greater skills lies in knowing when and how to check manuals rather than expecting to be a knowledge machine.

> I'm always afraid to put a 5

I realized one day why I behave in ways like this. It's from working in a clear-cut environment that I treat normal communication literally. Someone once commented that I 'never lie' which I understood was much more true than false but ultimately still false.