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0 pointsSatvikBeri13y ago0 comments

The nutrition of the mother as well as exposure to certain chemicals during the pregnancy plus actions/drugs used during the birth can play as large if not greater part in the IQ of a child as genetics.

Interesting. Identical twins raised separately have a correlation of .76, while fraternal twins raised together have a correlation of just .55 and non-twin siblings raised together have a correlation of .47[0]. To me that suggests a strong genetic (though not necessarily heritable) component. And perhaps the .08 difference between fraternal twins and non-twin siblings is explained by differences in the mother's nutrition.

How do you measure the effect of nutrition? What studies are you looking at?

[0]: http://en.wikipedia.org/wiki/Heritability_of_IQ#Correlations...

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eksith13y ago

Here you go :

http://www.ncbi.nlm.nih.gov/pubmed/20937654

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