Wason and Johnson-Laird (1972)

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Wason and Johnson-Laird (1972)

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Wason and Johnson-Laird (1972) Confirmation Bias The Wason Card Problem Wason and Johnson-Laird (1972)

Confirmation Bias Each card has a number on one side and a letter on the other. You can turn over 1 or 2 cards. Which card / cards would you turn over to prove the following statement false? “If a card has a vowel on one side, it has an even number on the other”. Solution

Confirmation Bias “If a card has a vowel on one side, it has an even number on the other”. The only card combination that can be used to prove this statement false is A + 7

Confirmation Bias ShortCutstv The Wason Card problem Wason and Johnson-Laird (1972) www.shortcutstv.com © 2018