As it happens, g does have a high correlation with IQ
Someone who knows the details of this is welcome to correct me if I’m wrong, but as I understand it g is a hypothetical construct derived via factor analysis on the components of IQ tests, so it will necessarily have a high correlation with those tests (provided the results of the components are themselves correlated).
Correct. g is the degree to which performances on various subtypes of IQ tests are statistically correlated—the degree that performance on one predicts performance on another.
It’s a very crude concept, and one that has not been reliably identified as being detectable without use of IQ tests, although several neurophysiologic properties have been suggested as indicating g.
Someone who knows the details of this is welcome to correct me if I’m wrong, but as I understand it g is a hypothetical construct derived via factor analysis on the components of IQ tests, so it will necessarily have a high correlation with those tests (provided the results of the components are themselves correlated).
Correct. g is the degree to which performances on various subtypes of IQ tests are statistically correlated—the degree that performance on one predicts performance on another.
It’s a very crude concept, and one that has not been reliably identified as being detectable without use of IQ tests, although several neurophysiologic properties have been suggested as indicating g.