Saturday, September 3, 2016

Randomness. Regression towards the mean.

Suppose a kid of yours does something awful, extremely bad; you scold him and punish him; then he behaves better. So you get to the conclusion that punishment is corrective ... but guess what, that's an illusion, extreme behavior tends to return to average behavior, this is called "regression towards the mean", this is due to random variation caused by multiple factors.

http://study.com/academy/lesson/regression-to-the-mean-in-psychology-definition-example-quiz.html

In fact, rewarding good behavior is more effective that punishing bad behavior.
https://www.psychologytoday.com/blog/family-affair/200809/rewards-are-better-punishment-here-s-why
http://news.harvard.edu/gazette/story/2009/09/building-human-cooperation/

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