Wason Selection Task

The Wason Selection Task is a psychological test that explores how people apply rules and logic. Participants see four cards, each showing a different piece of information (like a number or a letter). They are given a rule, such as "If a card has a vowel, then it must have an even number." Their goal is to identify which cards to flip over to test the rule, not just based on guesswork, but logical reasoning. The task reveals how people often focus on confirming the rule rather than testing its exceptions, highlighting common reasoning approaches and biases.