/sci/ - Science & Math

Measuring the heritability of personality is difficult because there are no robust measures for it. You can easily cheat a personality test (unlike an IQ test, which you can only cheat negatively). People also have different definitions depending on the cultural context. An outgoing person in Japan might not be considered such in America. Still, despite all that, there is clearly substantial heritability of personality using current measures..

>>11175306
Depends on the context. Between middle class families in the same country? Between the elite of one nation versus the destitute of another culture?
In the context that this debate is generally held, nature is far more important. Parenting style, school quality, family wealth have minor influence on adult social status in developed countries.
Gregory Clark has great economic history data demonstrating social mobility based on some genetic quality:
https://www.youtube.com/watch?v=4m8ChR84I60

>>10819408
A .5 heritability of a trait does not imply there is .5 influence of socialization, most environmental infuence is likely random variation. For most traits there is barely any evidence for shared heritability. This is possibly because the differences between households within the same nation are not large enough to produce effects. Which is good - we have such levels of material wealth it doesn't matter much whether you're raised in a dead poor household or middle class suburbia, your cognitive traits will largely be the same.

>>10368337
Then you don't understand what heritable means in this context. Heritability is the proportion of variance of a trait within a population that is attributable to genetics as opposed to the environment. This is estimated using adoption studies.
"Most cases" yes, you speak the same language as your parents, because you are raised in the environment provided by your parents. When the environment varies then that trait varies. Ergo, 100% environmental. This is not the case for things like intelligence, height, personality etc. etc.