I spanked both my kids and I have to say, I dont agree with it anymore. maybe something light on the hand when they are 2-3 just to get their attention and teach them the word no but not even that if it could be avoided.
I still truly believe that a couple good hard swats to the back side is the way to go. LOOK at all the monsters growing up with no discipline ,manners, or respect for anyone ,anything including themselves.
Depends on the kid, and I've got one of each. DD will put herself in her room and sob on her bed when she's done wrong. DS doesn't give a rip. Spakings, time outs, whatevs. He doesn't want to be in trouble (will fib or hide for mischief) but he's not scared of a punishment.