I've done many personality tests throughout my academic and professional career. And nearly always, it was some variant on the Myer Briggs Type Indicator (MBTI). The most recent one I did was at 16 Personalities and I found it to be a surpisingly accurate assessor of my personality type.
This started me thinking about what house I might have been sorted into if I got a letter to Hogwarts. I know, it wasn't a very likely scenario because I live in Australia, but still. I also started to wonder how accurate the Pottermore quiz was as a substitute to the sorting hat, given its short duration. This started my internet quest to find something that would connect the two, MBTI and Hogwarts House. I was delighted when I found an article on The Things that had done just that.
16 Personalities told me I was INFJ, The Advocate. So, according to them, I was practically a female Jon Snow, how awesome! I also did the Pottermore quiz, which sorted me in to Hufflepuff.
Armed with this information, I read the article on The Things, searching for my beloved INFJ. Eventually I found it, in all it's glory, next to the name, Ravenpuff. A Ravenclaw and Hufflepuff hybrid. I thought Pottermore had done a good job of sorting me, given Hogwarts doesn't actually have hybrid houses.
If you were wondering what your MBTI personality type was, and what how it would put you in at Hogwarts, I highly recommend both the quizes on 16 Personalities and Pottermore, and then checking out the article on The Things.