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Even if genetics is the "main determinant" what does that mean? Is it the the plurality of determinants? 51% correlation? 99%? Depending on the number, ther
by SketchySeaBeast 3y ago
Even if genetics is the "main determinant" what does that mean? Is it the the plurality of determinants? 51% correlation? 99%? Depending on the number, there's lots of room there for other factors.
I think you're oversimplifying with your example regarding educational attainment. The results say it's not a 1:1, so not all high school students would be marked the same, but it would mean that if you finished your post doc you're likely to score higher than someone who didn't complete grade 9. Would we argue that graduating high school or going on to do graduate work is simply as a matter of intelligence and not a more complex web of economic, social, and cultural factors?
- fngjdflmdflg 3y agoI think you missed my point re. educational attainment. My point is that if education attainment only exists as a difference after high-school (for the most part). Therefore if "IQ follows educational attainment" IQ would be the same until after high-school. I do think wealth, nutrition and education have some effect on IQ. I do not know to what extent. You had asked if we are sure that IQ follows those other factors. To answer completely, IQ follows genetics as well as other factors, mainly genetics. I truly believe that this is a scientific question that can be answered with observation. I think in twenty years or less we will have cataloged most of the genes that affect intelligence and the nature vs. nurture argument will have a direct answer. (or, at least, the nature side of the equation will be mostly solved.) Currently the hardware to collect this data is expensive (Illumina machines are $1M last I checked) and the methods of analyzing the data are somewhat crude (eg. GWAS). As these two fronts advance more and more genes will be found until most of it is known.