Others contend that negative reinforcement is a horrible way to train or respond to anyone. They believe that the way to improve someone's behavior or skill set is to work with them to improve, giving them plenty of positive feedback when they do well and words of encouragement and hope when they don't.
I can't say which approach works better overall. I have had both approaches employed on me. I have used both approaches with others. At my age harsh public correction or insult is often counterproductive. I may spend more time resenting the person calling me out than I will correcting my mistake. But there are times when a blunt "You f***** up. Fix it!!" is the only thing that works. Time is often too short to worry about people's feelings.
Mingus Union High School in Cottonwood, Ariz., issues ID badges for all students to hang around their necks — freshmen and sophomores wear red-colored cards and juniors and seniors wear gray, both of which are school colors. But according to the Arizona chapter of the ACLU, upperclassmen who struggle in classes must also wear red badges (aka “scarlet badges” of shame) with numbers that indicate their repeated grade level if their marks don’t improve.