Part 1: Abstract conditional statement condition

This example is similar to the one used by Wason(1966). Below are four cards. Every card has a shape on one side and a letter on the other. The rule is that if there is a square on the card, there must be a vowel on the other side of the card. Your task is to determine which cards you need to turn over to see if this rule is being applied for these cards.

1

2

3

4

Which cards need to be turned over to confirm the rule that if there is a square on the card, there must be a vowel on the other side of the card?

Check all that you think need to be turned over, and then Click here to continue