09 FEB 2018 by ideonexus
Bias in Praise VS Punishment and Reversion to the Mean
I had the most satisfying Eureka experience of my career while attempting to teach flight instructors that praise is more effective than punishment for promoting skill-learning. When I had finished my enthusiastic speech, one of the most seasoned instructors in the audience raised his hand and made his own short speech, which began by conceding that positive reinforcement might be good for the birds, but went on to deny that it was optimal for flight cadets. He said, “On many occasions I ha...User Cortesoft has a good analogy for this:
"Flip 100 coins. Take the ones that 'failed' (landed tails) and scold them. Flip them again. Half improved! Praise the ones that got heads the first time. Flip them again. Half got worse :(
"Clearly, scolding is more effective than praising."
(source)
See also Regression Fallacy
26 JAN 2012 by ideonexus
Games that Turn Humans into Rats in a Skinner Box
The box also taught us two fundamental lessons, one of which had ramifications that extended far beyond Skinner's experiments. Humans are hardwired to respond to primary reinforcers, just like any other animals. And while primary reinforcers have a diminishing effect once we're satiated, secondary reinforcers, like money or social status, exist outside our biological needs, and these never hit a satiation point. In other words, we are hardwired to seek approval from our peers, and we can neve...Games like Farmville and Angry Birds tap into the reward mechanisms in our brains, administering doses of dopamine to us for repetitive tasks.