[mD5pPxMcS6fVWKE]

Is amount of money in someone's bank account a subjective trait? IQ has been shown to correlate with income.

[baddox]

That correlation could be very easy to explain by a confounding variable.

[mD5pPxMcS6fVWKE]

confounding variables can't be quickly and cheaply measured, that's what IQ is - measuring all the confounding variables.