|
| |
| The Test: |
The white cards below obey a rule. |
The Rule: "If there is a vowel on one side then the
card has an even number on the other side." |
How many cards must you turn over and check to see that the rule has been
kept?
| a |
one |
| b |
two |
| c |
three |
| d |
four |
| e |
all of the above |
| Source: Moore, B. N. & Parker, R. (2001).
Critical thinking. Mountain View, CA: Mayfield Publishing Co. |
|
