> You assume that physical violnce is effective. Research shows otherwise.

Did you read the article? Research shows that corporal punishment can be effective, if done in the right way (i.e. don'y hit your kids when they are angry).

> Physical violence is used by bad perents who don't know effective methods of discipline.

We disagree with the definition of bad parent, apparently. I think my parents were very good. Of course, as I said initially, they very rarely resorted to physical punishment, but me and my brother knew that the threat was credible. Of course, I don't think any of their friends would agree with them, but then, none of them had comparably active and difficult children.