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Comparative Psychologist

Real-Life Activities

Real-Life Math

You are a comparative psychologist interested in the behavior of cats. You believe that your research will lead to some understanding about how human beings function.

You have a cat in a box. The cat can only escape from the box by stepping on a latch that opens the door. After you put the cat in the box, you put a piece of fish outside. The first time, the cat tries for 2.5 minutes to reach the fish through the box slats until it steps on the latch and opens the door.

The second time it takes the cat 50 seconds to escape. The third time it takes the cat 90 seconds to get out of the box. After the 15th time, it takes 50 seconds for the cat to escape, but by the 20th try the cat consistently steps on the latch to open the door.

"If you want to be a psychologist you really have to be able to weather a lot of statistics," says Cathy Rankin a comparative psychologist. "You need to be able to read statistics and understand what they are saying."

You examine the statistics of your cat experiment:

  1. How many times faster was the cat the second time it escaped than the first time it tried? How many seconds faster was the cat?
  2. How many times slower was the cat the third time it escaped than the second time? How many more seconds did it take to open the door?

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