Re:When You Get into Unschooling, It’s Almost Like a Religion
by barry-cotter on Monday October 19, 2020 @05:47PM
(#24831403)
> Intelligence is not hereditary for the most part, and there's a huge environmental component to it.
This isn’t true. Every psychological trait has a large heritable component. The lowest value I’ve ever seen for heritability of intelligence is on the order of 0.6 and 0.8 is just as common.
> Genetic Influence on Human
Psychological Traits
> There is now a large body of evidence that supports the conclusion that individual differences in most, if not all, reliably measured psychological traits, normal and abnormal, are substantively influenced by genetic factors. This fact has important implications for research and theory building in psychology, as evidence of genetic influence unleashes a cascade of questions regarding the sources of variance in such traits. A brief list of those questions is provided, and representative findings regarding genetic and environmental influences are presented for the domains of personality, intelligence, psycho- logical interests, psychiatric illnesses, and social attitudes. These findings are consistent with those reported for the traits of other species and for many human physical traits, suggesting that they may represent a general biological phenomenon.
...
> own positive correlation between tests of mental ability, the evidentiary base for the general intelligence factor. This value is typically about .30. The genetic correlation be- tween such tests is, however, much higher, typically closer to .80.
This isn’t true. Every psychological trait has a large heritable component. The lowest value I’ve ever seen for heritability of intelligence is on the order of 0.6 and 0.8 is just as common.
> Genetic Influence on Human Psychological Traits
> There is now a large body of evidence that supports the conclusion that individual differences in most, if not all, reliably measured psychological traits, normal and abnormal, are substantively influenced by genetic factors. This fact has important implications for research and theory building in psychology, as evidence of genetic influence unleashes a cascade of questions regarding the sources of variance in such traits. A brief list of those questions is provided, and representative findings regarding genetic and environmental influences are presented for the domains of personality, intelligence, psycho- logical interests, psychiatric illnesses, and social attitudes. These findings are consistent with those reported for the traits of other species and for many human physical traits, suggesting that they may represent a general biological phenomenon.
...
> own positive correlation between tests of mental ability, the evidentiary base for the general intelligence factor. This value is typically about .30. The genetic correlation be- tween such tests is, however, much higher, typically closer to .80.
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.397...