Spanking in the USA: A sad state of affairs and why spanking is never ok. - Child Psychology and Parenting Blog: Child-Psych.org.
Yes, the American Academy of Pediatrics unequivocally recommends against the use of aggression as a discipline method. Why? Because the research on physical punishment is clear: it is unnecessary and is associated with a long list of NEGATIVE consequences. For example, although proponents of “spanking” argue that if you don’t spank, the child will not learn to behave properly, the research actually suggests the opposite.