> 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#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-colle...
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_...
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#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-colle... 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_...