General Question

YARNLADY's avatar

Has the standard I Q bell curve shifted as this comment from a previous question states?

Asked by YARNLADY (46570points) April 10th, 2009

“It has been said that the Bell Curve for IQ has shifted 15 points (the standard deviation) to the left. Thus what was 85 (or left of center) is now viewed as 100 (or center).” Please give references.

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11 Answers

nikipedia's avatar

IQs seem to be steadily going up, but by how much depends on what kind of IQ test you’re looking at and the population you measure. This is called The Flynn Effect.

YARNLADY's avatar

@nikipedia very informative, thank you

nikipedia's avatar

@YARNLADY: Glad I could help :)

asmonet's avatar

I got stupider? :(

NaturalMineralWater's avatar

Well if they’re grading on a curve we should just all put our names on our papers and turn it in so we can all get the highest score possible.

Jeruba's avatar

@YARNLADY, could you please provide a link to the previous question?

Zen's avatar

<<< Got much smarter when he moved here from wis.dum

mattbrowne's avatar

@nikipedia – Nutrition as an explanation for the effect makes a lot of sense to me.

There are also some interesting observations when comparing the IQ bell curves of men and women. Though almost identical the male bell curve looks like the female one, except nature hit it right in the middle with a hammer stretching it a bit further to the left and right. In plain words, there are a few more feeble-minded men, but also a few more ingenious men.

shockvalue's avatar

Stanford-Binet is standardized, which means that average IQ will ALWAYS be 100, by definition.

Zen's avatar

No references, but I have a gut feeling: It’s shifted 15 (or so) points to the left here in fluther sice the wis.dm invasion. Just saying.

Hey: don’t shoot the massageur. I’m also from there. I include me too, okay, me as well. I am 15 points left, less, okay, don’t shoot the masseuse.

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