that I think might be what you're looking for.
http://www.amitymama.com/vb/showthre...&threadid=1968
http://www.amitymama.com/vb/showthre...&threadid=3095
http://www.amitymama.com/vb/showthre...threadid=18691
http://www.amitymama.com/vb/showthre...&threadid=2435
The book I highly recommend is Punished by Rewards by Alfie Kohn. There are a few threads with articles he has written.
HTH, and keep posting if more comes up on this topic for you! This is one that doesn't get enough discussion IMO!
That's generally speaking, not here specifically!
