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> Then I learned how IQ is highly correlated to genetics (from 0.75 to 0.8). The correlation of IQ to heredity varies based on the relation, and isn't nearly a

> Then I learned how IQ is highly correlated to genetics (from 0.75 to 0.8). The correlation of IQ to heredity varies based on the relation, and isn't nearly as strong for parent-child. Same person (tested twice) .95 Identical twins—Reared together .86 Identical twins—Reared apart .76 Fraternal twins—Reared together .55 Fraternal twins—Reared apart .35 Biological siblings—Reared together .47 Biological siblings—Reared apart .24 Unrelated children—Reared together—Children .28 Unrelated children—Reared together—Adults .04 Cousins .15 Parent-child—Living together .42 Parent-child—Living apart .22 Adoptive parent–child—Living together .19[60] https://en.wikipedia.org/wiki/Heritability_of_IQ#Correlations_between_IQ_and_degree_of_genetic_relatedness https://en.wikipedia.org/wiki/Heritability_of_IQ#Correlation... > I don't think that I would personally want to have a child with someone of another race if I know that it would push down his expected average IQ from 100 to 92 or lower, in addition to potentially increasing his testosterone levels Why not just have your mate do an IQ test? People don't mate at random: those who value intelligence will select intelligent mates. For that matter, why pick race as your correlating factor? You could also correlate by college major, highest education attained, or wealth: http://www.statisticbrain.com/iq-estimates-by-intended-college-major/ http://www.statisticbrain.com/iq-estimates-by-intended-colle... https://brainsize.wordpress.com/2014/06/02/iq-years-of-education/ https://brainsize.wordpress.com/2014/06/02/iq-years-of-educa... Race is a tricky thing in the US. It encompases not only genetics, but also social status, wealth and access to resources, etc. It also isn't the end-all-be-all, since even with all these factors the top 1% of every race will beat the average of any race: https://commons.wikimedia.org/wiki/File:WAIS-IV_FSIQ_Scores_by_Race_and_Ethnicity.png https://commons.wikimedia.org/wiki/File:WAIS-IV_FSIQ_Scores_...

Frozenlock 11y ago
> Why not just have your mate do an IQ test? People don't mate at random: those who value intelligence will select intelligent mates. > For that matter, why pick race as your correlating factor? You could also correlate by college major, highest education attained, or wealth There's a little problem with that, because from what I know, there's a regression to the mean in biology. If two exceptionally tall Japaneses have children together, their children might be a little taller than their national mean, but they won't be as tall as the parents. https://www.youtube.com/watch?v=Jpmlqtnrec8 https://www.youtube.com/watch?v=Jpmlqtnrec8
- chillacy 11y ago
  I suppose the heart of the matter I'm getting at is this: you have claimed to have delved into IQ correlation data and arrived at the conclusion that interracial marriage is not a good thing. However I have tried to point out that the evidence doesn't lead you to this conclusion since other variables may correlate and you can simply pick smart people from any race, because assuming regression to the mean, if I pick a 160IQ black woman and a 150IQ white man, we'd expect their kid to be centered around 155, regardless of race. Nonetheless you have repeatedly brought it back to race, which means that this is tremendously important to you. On that topic I'm curious why. You're probably pretty intelligent (though introspection is a skill separate from observing the outside world), so I have high hopes for a good analysis ;) I am aware that white men have the highest suicide rate of all races, so there's something going on there. I've also heard explanations like "lack of culture", and I personally suspect much of it comes from attacks from activists (offline and online) in what amounts to a social power struggle, and that the natural response to being attacked is to band together and really delve deep into your cultural identity. Many of us pick race in the US (apparently especially in US prisons), but I've somehow straddled race, tech, and maybe internet culture.
  - Frozenlock 11y ago
    > However I have tried to point out that the evidence doesn't lead you to this conclusion since other variables may correlate (...) They may correlate, but genetic is by far the biggest driver. Identical twins (same DNA) have between 0.76-0.86 correlation between their IQs. The 0.76 is raised separately; a completely different environment and they are still almost identically smart! The other numbers you've written are the effect of moving away from perfectly identical DNA. (You could argue that part of the difference is cultural, but that doesn't change anything if we don't know which part of the culture is negatively impacting the child.) >because assuming regression to the mean, if I pick a 160IQ black woman and a 150IQ white man, we'd expect their kid to be centered around 155, regardless of race. No, see my Japaneses example. Two geniuses of 160IQ will most probably have children returning closer to the mean (tho probably a little higher). In this case, the mean is different for every race. If I'm a white with a IQ of 100 and I have a child with a black with a IQ of 100, the expected result is not 100, because the black is an outlier at this IQ. > Nonetheless you have repeatedly brought it back to race, which means that this is tremendously important to you. On that topic I'm curious why. You're probably pretty intelligent (though introspection is a skill separate from observing the outside world), so I have high hopes for a good analysis ;) I do too. :-) I brought race because that was the topic at hand and because we are talking biology here (reproduction). Obviously "white" isn't my only criteria. I could speak at length how I like girls with a fighting spiring, but that'd be a little out of context. Like I said in a parent post, my previous position was pretty much "all races are the same". It took -months- before I really changed that. What really prevented me from accepting the various studies was the survivor bias: All the individuals from the other races I ever saw was on TV. Actors, political commentators and such. If they got their job, it's because they were good. I wasn't looking at the average here. The same apply for people of the same race by the way. Many people of IQ 120+ went to university and their entire social group is composed of smart people. They don't realize (and can't conceive) that a huge part of the population is less intelligent. ------ > I am aware that white men have the highest suicide rate of all races, so there's something going on there. I have no clue why that is, but I'd very much like to know.

Frozenlock 11y ago

> Why not just have your mate do an IQ test? People don't mate at random: those who value intelligence will select intelligent mates. > For that matter, why pick race as your correlating factor? You could also correlate by college major, highest education attained, or wealth There's a little problem with that, because from what I know, there's a regression to the mean in biology. If two exceptionally tall Japaneses have children together, their children might be a little taller than their national mean, but they won't be as tall as the parents. https://www.youtube.com/watch?v=Jpmlqtnrec8 https://www.youtube.com/watch?v=Jpmlqtnrec8

chillacy 11y ago
I suppose the heart of the matter I'm getting at is this: you have claimed to have delved into IQ correlation data and arrived at the conclusion that interracial marriage is not a good thing. However I have tried to point out that the evidence doesn't lead you to this conclusion since other variables may correlate and you can simply pick smart people from any race, because assuming regression to the mean, if I pick a 160IQ black woman and a 150IQ white man, we'd expect their kid to be centered around 155, regardless of race. Nonetheless you have repeatedly brought it back to race, which means that this is tremendously important to you. On that topic I'm curious why. You're probably pretty intelligent (though introspection is a skill separate from observing the outside world), so I have high hopes for a good analysis ;) I am aware that white men have the highest suicide rate of all races, so there's something going on there. I've also heard explanations like "lack of culture", and I personally suspect much of it comes from attacks from activists (offline and online) in what amounts to a social power struggle, and that the natural response to being attacked is to band together and really delve deep into your cultural identity. Many of us pick race in the US (apparently especially in US prisons), but I've somehow straddled race, tech, and maybe internet culture.
- Frozenlock 11y ago
  > However I have tried to point out that the evidence doesn't lead you to this conclusion since other variables may correlate (...) They may correlate, but genetic is by far the biggest driver. Identical twins (same DNA) have between 0.76-0.86 correlation between their IQs. The 0.76 is raised separately; a completely different environment and they are still almost identically smart! The other numbers you've written are the effect of moving away from perfectly identical DNA. (You could argue that part of the difference is cultural, but that doesn't change anything if we don't know which part of the culture is negatively impacting the child.) >because assuming regression to the mean, if I pick a 160IQ black woman and a 150IQ white man, we'd expect their kid to be centered around 155, regardless of race. No, see my Japaneses example. Two geniuses of 160IQ will most probably have children returning closer to the mean (tho probably a little higher). In this case, the mean is different for every race. If I'm a white with a IQ of 100 and I have a child with a black with a IQ of 100, the expected result is not 100, because the black is an outlier at this IQ. > Nonetheless you have repeatedly brought it back to race, which means that this is tremendously important to you. On that topic I'm curious why. You're probably pretty intelligent (though introspection is a skill separate from observing the outside world), so I have high hopes for a good analysis ;) I do too. :-) I brought race because that was the topic at hand and because we are talking biology here (reproduction). Obviously "white" isn't my only criteria. I could speak at length how I like girls with a fighting spiring, but that'd be a little out of context. Like I said in a parent post, my previous position was pretty much "all races are the same". It took -months- before I really changed that. What really prevented me from accepting the various studies was the survivor bias: All the individuals from the other races I ever saw was on TV. Actors, political commentators and such. If they got their job, it's because they were good. I wasn't looking at the average here. The same apply for people of the same race by the way. Many people of IQ 120+ went to university and their entire social group is composed of smart people. They don't realize (and can't conceive) that a huge part of the population is less intelligent. ------ > I am aware that white men have the highest suicide rate of all races, so there's something going on there. I have no clue why that is, but I'd very much like to know.