mercredi 4 décembre 2013

The bitter truth about PISA (big buzz now) and GDP...


According to this author the link is far more potent than previously thought by Lynn. it's a link with log(GDP)!
can you believe it?

An easily remembered relationship is obtained by considering the effect of a 10 point increase in IQ:
View the MathML source


View the MathML source


http://www.sciencedirect.com/science/article/pii/S0160289605001078#

IQ is measured as follows
 PISA scores are in keeping with IQ distribution over the world

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