"Peter C. McCluskey" wrote:
> Correlation is not sufficient to establish causation. Judith Harris's book
> The Nurture Assumption provides a fairly compelling argument that the
> correlation you observe is primarily the result of the genetic similarity
> between parent and child, and that very little of that correlation is due
> to the effects of parental behavior on the children's psychological
> development.
I have read up on that subject, and I get the impression that she is saying that there is little difference between parents as long as they are relatively decent parents. But there is no question that really abusive parents can inflict great harm on their children.