Does that mean
it's weighted then? There's no reason that intelligence (if it's possible to actually define some sort of linear intelligence scale) should necessarily be a normal distribution.
( K2k6 has a proper job these days, Fri 5 Mar 2010, 12:58, 2 replies, latest was 16 years ago)

Would it not be some sort of Bell Curve-based distribution?
With most people towards the middle, and bell-ends on the outsides.
(PenguinOfDeath is Scottish, and most likely angry, Fri 5 Mar 2010, 13:00, Reply)

Actually
that's the best reasoning ever!

*likes*
( K2k6 has a proper job these days, Fri 5 Mar 2010, 13:01, Reply)

*sniggers*
Bell Curve. Hu Huhuh Huhhhu.
( Monty Boyce, My cheese game is strong, Fri 5 Mar 2010, 13:05, Reply)

I was going to say pretty much exactly that

( Vipros. clever got me this far, then tricky got me in, Fri 5 Mar 2010, 13:09, Reply)

Yep, IQ tests are weighted every so often to keep the average at 100
As in general people are getting more literate and intelligent, that means an IQ test now is harder than it was 20 years ago.

There are a few reasons/explanations for intelligence being normaly distributed but they're all based in evolutionary psychology, which I dropped as soon as I could.
(PsychoChomp, Fri 5 Mar 2010, 13:02, Reply)