I agree that 3 standard deviations of improvement of a random person is a lot to ask for. However, I can easily see that someone with built in potential to be 3 sd above average could be brought down to near average by the wrong system.
My expectation of my children’s potential is very dependent on how heritable intelligence is, and I admittedly do not know much about that.
I agree that 3 standard deviations of improvement of a random person is a lot to ask for. However, I can easily see that someone with built in potential to be 3 sd above average could be brought down to near average by the wrong system.
My expectation of my children’s potential is very dependent on how heritable intelligence is, and I admittedly do not know much about that.
As far as I know, most estimates point to around 50% genetic, but parenting style doesn’t explain much of the remaining 50%
See this: http://infoproc.blogspot.fr/2009/11/mystery-of-nonshared-environment.html