Somewhat tangentially… couldn’t you do better by identifying IQ-inhibiting and IQ-enhancing environmental factors and weighting IQ scores based on those factors? If Sam’s IQ is 5% lower than Pat’s but Sam has lived in an environment 5x worse for developing IQ, if I’m interested in genetics it seems I’d do better with Sam.
You’d need to know the elasticity of intelligence and environments (5x on what scale? And does −5% really indicate outperformance on the genetics side?), which I’m not actually sure we know, and much of the ‘environment’ contribution is nonshared—immeasurable, random, we don’t know what it is. But hypothetically, you could do slightly better by trying to measure environment & control for it, yeah.
Somewhat tangentially… couldn’t you do better by identifying IQ-inhibiting and IQ-enhancing environmental factors and weighting IQ scores based on those factors? If Sam’s IQ is 5% lower than Pat’s but Sam has lived in an environment 5x worse for developing IQ, if I’m interested in genetics it seems I’d do better with Sam.
You’d need to know the elasticity of intelligence and environments (5x on what scale? And does −5% really indicate outperformance on the genetics side?), which I’m not actually sure we know, and much of the ‘environment’ contribution is nonshared—immeasurable, random, we don’t know what it is. But hypothetically, you could do slightly better by trying to measure environment & control for it, yeah.