well not exactly 100 % pure, analog can be found with the real family and real people, but maybe developers System3 had, some consulting shrink, or family psychaeatrist, to come to conclusion that slobs type family should be 1-st level, or mayor and his wife in 4 level. Maybe some of you have real info, on how this aspect of the game was developed. (I dont need your opinio). please write if you have exact info