"My IQ (131 BTW) was NOT calculated in this way." I would imagine not, since there is no such thing as the Swanson/Crain system.
"...since there is no such thing as the Swanson/Crain system."
I think there is a Swanson/Crain weight loss system. Perhaps the surveyer mistakenly picked the ex-presidents' body mass index. That would explain Clinton's high score.