Imagine you are asked to give a small amount of money to a stranger. It’s not your money, so it doesn’t cost you anything. You’re just deciding how much they get. But first, a pair of coins is flipped – one for you and one for the stranger – and you are told the results. […]… Learn more.

Parents may be familiar with this scenario: a child is well behaved at school and polite to their teachers but has a meltdown at home in the afternoon. Or they say please and thank you at a friend’s house but ar… Learn more.