In the Wason four-card problem, each card has a letter on on…
In the Wason four-card problem, each card has a letter on one side and a number on the other. The rule is “If there is a vowel on one side, then there is an even number on the other side.” Imagine you are presented with the cards A, 8, M, and 13. Research shows that in addition to turning over the A, people often want to turn over the 8 but they really need to turn over the 13. Why?
Read DetailsHolly was in her friend’s kitchen preparing lunch for the fa…
Holly was in her friend’s kitchen preparing lunch for the family. When she was ready to dish up the soup, she searched for a ladle but couldn’t find one. She decided to wait until her friend returned to ask her where the ladle was, leaving the soup in the stove pot. Her friend later explained that the ladle had been broken, so she told Holly to use a coffee mug to “spoon” the soup into bowls. Which of the following obstacles was Holly experiencing?
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