Also a reasonable test for psychopaths

If you hang out in logic/math/education/psychology circles (as one so often does….) you’ve run into the Wason selection task – give people four cards, each with a destination on one side and a mode of transportation on the other and ask them to flip over all and only the cards necessary to ensure that the scenario described doesn’t involve someone violating the ruled “If you travel to Boston, you take a plane.” The general point is that people are bad (really, epically bad….) at propositional calculus and inference. Bruce Schneier wrote recently on an interesting twist I hadn’t come across … Continue reading Also a reasonable test for psychopaths