[Erwin]

The test as I created it (that site uses a copy of the questions, those were written by Brandon Downey) asked 30 question evenly spread pitting e.g. Explorer against Socializer, so you ended up with a score that said e.g. you prefer Explorer 100% against any other.

Back when the test was relevant (around 2000?) there was lots of multiplayer games (MUDs) and so you could enter what MUDs you were playing after you got your score -- it was interesting to see the averages for each aspect matching up with type of MUD (e.g. PVE versus PVP versus purely social/RP).

I also tried to match the results against a volunteered MBTI: http://mud-dev.zer7.com/2001/8/20412/#post20412