Social Psychology Network

Maintained by Scott Plous, Wesleyan University

The Famous Four Card Task

Suppose each card has a number on one side and a letter on the other. Which of these cards are worth turning over if you want to know whether the statement below is false?
Card with A Card with D
 
Card with 4 Card with 7

"If a card has a vowel on one side,
then it has an even number on the other side."




Return to Top

©1996-2019, S. Plous

Beginning of dialog window. It begins with a heading 1 called "Registration Form". Escape will cancel and close the window. This form does not collect any actual information.

Dear Visitor,

An urgent request: Building on 20 years of grant support, we now depend on donations to keep this website available. If you use the Network, please help—the SPN Advisory Board will match every dollar up to $12,000, doubling your contribution!

One Time Monthly