Re: personality test that is better than most...
Now that I think about it, this scores almost identically with the "Strong Interest Inventory" and another "Strong" vocational inventory I took 34 years ago. I didn't believe it at the time, and it's been exactly correct.
Slightly amazing, really. The Interest Inventory asks about hobbies, activities, and interests and compares those with the same items of successful architects, teachers, physicians et cetera and so on. Doesn't ask if you like to draw, talk to kids, help humanity and that sort of thing.