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for every such study there are probably 10 twin studies showing that intelligence is heritable.
by buboard 8y ago
for every such study there are probably 10 twin studies showing that intelligence is heritable.
- tomhoward 8y agoHeritable and genetically determined are not the same thing, and the findings of these kinds of studies are less clear-cut than you suggest: > In all of these twin studies, however, researchers have rarely accounted for differences in the social context. ... > Highlighting the insights of Kurt Lewin more than 70 years after his work, the researchers found that socioeconomic background had a major impact on genetic influences on intelligence: More specifically, when twins were reared in high socioeconomic status environments, genes accounted for approximately 72% of variance in intelligence scores between twins. When reared in low socioeconomic status environments, genes accounted for only about 8% of variance in intelligence within the twin pairs. Source: https://www.psychologytoday.com/au/blog/under-the-influence/201204/intelligence-is-not-just-genetic https://www.psychologytoday.com/au/blog/under-the-influence/...