I'm no parent, not yet at least.
I honestly think a good swat on the arse is effective, a cuff upside the head or a smack on the hand. There's a difference between disciplining your child and beating them; and I'm for the disciplining.
We moved around a few times growing up so I had loads of different friends, now in the small towns it was pretty unanimous that if you crossed that line you were going to get a swat. Then we moved to the city, some of the things kids were getting away with floored me, as a child at 10. If I ever back talked to my parents it was a cuff upside the head, I usually only did it a couple times a year cause it hurts getting smacked on the ear. I sure don't do it now, they still smack me upside the head and I'm almost 20. When I was little if I did something I wasn't supposed to do, like misbehaved in a restaurant, mum would take me out to the car give my arse a good swat, tell me to sit there until I could behave like a proper little girl then I could come back in. She did that once - never had to do it again after that. Misbehaved in the mall or a store, she took you to the closest bathroom and gave you a good swat on the arse after she locked the door. She only ever did that once when I threw a tantrum.
So... in three times, three sessions of discipline I behaved out in public, didn't back-talk, didn't throw tantrums and didn't complain... too much

Now these kids from the city... none of them ever had any form of discipline like that... I'd go over to their houses and these kids were swearing at their parents, throwing fits in the middle of the stores and running around the restaurant. Discipline to these parents was 'nownow johnny, sit down and behave.' To me.. that's bad parenting... But I was raised like that.
Yeah it hurt and I learned from it, just like you learn not to play with matches after you don't listen and burn yourself, or if you don't listen to you mother when she says 'don't play on the rocks' and you fall and get hurt, you learn. Do not do that. Like others have said, I never felt unloved, or hated or unwanted. IT was their method and it seemed to work a lot better than the methods people are using now. Mum had no empty threats, if she said stop that/ ave THE look or you're going to get a licken you either stopped or you got one. Though she never yelled at us when we were younger... I don't think she agreed with that. She did however shake me, when I was 15. Curfew was at 9 an I didn't get home till 11 ... so when I walked in the door she was all tear splattered, she grabbed me by the arms and gave me a good shake and yelled at me about how worried she was because she thought I was kidnapped becuse I didn't call or get a hold of her. Yep...uhhh I wasn't late for curfew. That shake scared the living hell out of me
I think it really boils down to the parents and their own will. Personally I don't think you should ever have to out-wit you child. Shouldn't you be the boss? Your kids shouldn't be doing things where you have to find ways to outsmart them. That there says to me there wasn't really much discipline in the earlier years, but that's just my opinion. As soon as I understood yes and no, I was disciplined, because I knew what those words meant; authority was asserted before anything could happen. IMO parents need to be more assertive now than they are, they shouldn't be so afraid that their kids will hate them or call the police. It is the parents right and job to discipline their child, be threw a well intended swat, or soap in the mouth for lieing (cough only did that a couple times too). Like I said, I'm almost 20 and my parents still discipline me, I'm an adult, however I'm still their child; always will be. And I'd have to say they raised me right. I live in their house, they are still the boss until I move out, they still feed me and give me a roof over my head for free- heck I've still got curfew. They're still the boss, and that's how I think it should be. I've respected, loved and revered both my parents my whole life, I never once felt unloved, unwanted or hated when I got my discipline.
But that's just the opinion of a young girl without kids.
Donata - I'm way too cocky for my own good, I love myself, even my little fat cells that evade my workouts. Yes the smacks had a long-term affect on me, they taught me. I didn't fear my parents, I love them, they're my best friends. Yup I sure did change my behaviour to one that would make them smile and say 'Thank-you for behaving, even though those other kids weren't. You set a good example.' Every time I behaved I got praised and thanked for acting so grown-up. If I didn't well I got a smack. I must admit I was a bit of a rebel for a bit, I refused to go to church and I think I refused to eat egg-plant one night... and I think I may have not done my homework, but I only ended up hurting myself by trying to be witty by not doing my homework.

Can't say I was the cleverest of the bunch.