By "bipolar" is meant a trade-off; for example, after controlling for g, individuals who tend to do well on verbal tests tend to do poorly on image rotation.

Isn't this just an artifact of the way g is calculated? If g = IQ, and IQ = IQv + IQs, then of course for a given IQ there will be a trade off between IQv and IQs!

What you have to do is control for IQv and look at IQs (and vice versa) to see if there's a tradeoff.

It's not an artifact of the calculation. Those are lower-order factors, extracted from the residual variance.

David, this issue confuses me as well. You might want to read some of the cited references in the paper about this.

A lot of the data for this kind of study comes from socialistic, politcally-correct Scandinavian places where government is not the enemy. Minnesota had a Socialist governor in the 30's, and the effects on the state only wore off about 1990 or 1995.

What does "Associative Memory" refer to?

John Emerson says:


A lot of the data for this kind of study comes from socialistic, politcally-correct Scandinavian places where government is not the enemy. Minnesota had a Socialist governor in the 30's, and the effects on the state only wore off about 1990 or 1995.


What on earth are you saying John? That socialist governments have more effect on the IQs of the people they rule over than conservative governments?

If so, can you speculate on mechanism?

What does "Associative Memory" refer to?

"Rote memorization of meaningless pairings."

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