I’d be very surprised if sensory discrimination correlated with g at a rate of 1.0. That’s higher than IQ tests. If the correlation was really that high we wouldn’t need IQ tests at all. We could just use sensory discrimination instead.
There doesn’t seem to be contradiction here; so what if we could, we simply don’t. Not defending the idea here, just noting that prevalence of IQ tests is very weak evidence.
There doesn’t seem to be contradiction here; so what if we could, we simply don’t. Not defending the idea here, just noting that prevalence of IQ tests is very weak evidence.