I remember those old "what X are you" quizzes I did in highschool. It was so easy to get the result you wanted. I'm going to use Hogwarts houses for example. I could run the test and consistently get a particular house, they were obvious.

When I got on Pottermore (I got one of the early access accounts), the test for determining your house is actually nuanced. The answers are not at all clear to which house they were meant for; in fact most answers fit multiple houses. I'm sure that behind the scenes, answers had a score/rank per the house's ideal. One house might score 3 points, another 2, while another 1 point all in the same answer. It made for an actual test you'd have a harder time cheating.

I actually didn't know which house I'd be sorted into. I should go and see if I can find the test again.

(I did sort Gryffindor.)