The Rule of the Wason Four-Card Problem Is, "If There

question 57

Multiple Choice

The rule of the Wason four-card problem is, "If there is a vowel on one side, then there is an even number on the other side." Let's say you are presented with A, 8, M, and 13, each showing on one of four cards. To see if the rule is valid, you would have to turn over the cards showing

• A) 8 and M.
• B) A and M.
• C) A and 13.
• D) 8 and 13.