While reading a magazine, you come across an article on the nature- nurture controversy in personality.
The article describes several adoption studies in which adopted children ( who share no genes with each other but grow up in the same household) are no more like each other than complete strangers.
This suggests that the influence of family environment- and of parental behavior- on personality is very weak.
You show the article to a friend, who has trouble believing the results. " I always thought parents who don't show affection produce kids who have trouble forming lasting relationships." How would you explain to your friend the relationship among nature, nurture, and personality?