This is indeed a good explanation for why a parent may scold their child by use of physical intimidation. This theory provides a definition for the old saying "you better knock some sense into that boy/girl.".
From personal experience it seems another valid explanation given by many who physically punish their children is as follows. If you do not cause your child some physical suffering for an action deemed inappropriate, the child will inevitably think that such actions are tolerable with only minimal consequences when they fail to comply with the rules. With this line of thinking, recurrent disobedient behavior is probable. With this theory in mind one can argue that corporal punishment in controlled circumstances is acceptable. This view will of course be disputed by those who protest the method of punishment regardless of how minimal the effects may or may not be.
There are many people who share this sense of compliance with the use of corporal punishment. National opinions differ from country to country in regards to this issue. In the children's rights class course pack, a part of section six compares how people's opinions differ from country to country. The three countries looked at include Sweden, Canada, and the United States. .
The general consensus among the majority of Swedish people seemed to be that the corporal punishment of a child is a violation of rights and not only should people not use this form of punishment but the practice should be outlawed all together. This is supported in section six of the course pack where it states "in,1979, the international year of the child, Sweden became the first industrial society to adopt and give legal backing to a ban on corporal punishment in the home." (Durant.Joan.E.pols:395-course pack,sec:6) Obviously a bold move on the governments behalf to revolutionize the issue through the use of legal restrictions. I refer to this action as bold because diplomatically it could result in other countries feeling pressured to look more closely at the protection rights of their children.