Solve the Math Problem!

A robot has hidden simple math problems in some audio transmissions that we've recovered. However, these audio clips have been "corrupted". Most of the transmissions sound very strange and garbled; the robot's "voice" is very different than a human voice.

A few of the transmissions have not been garbled. These audio recordings will sound like a human man.

We want you to help us by solving the math problems. On each trial, you will listen to a short audio clip. These clips contain simple addition or subtraction problems, containing two numbers from zero to nine. After you play the clip, you will be presented with two possible answers to the problem. Your job is just to select the correct answer. For example, the robot voice might say "5 plus 3". If that happens, you should select "8".

This task will not be easy; if you are unsure, take your best guess.

When you are ready to begin, answer the question below. By completing this survey, you are consenting to be in this research study. Your participation is voluntary and you can stop at any time.

(NOTE: When the experiment is done, a submit button should appear. If that fails to occur, the HIT should "auto-submit" after one minute.)


The robot transmitted this math problem:

If you had to guess, what is the solution to the problem?

To complete this experiment your computer needs working audio. To test your the sound on your computer, please listen to the clip below.

What kind of sound is playing?

Beeping Traffic Clapping Music Conversation Ocean
Oh no! You did not answer the first question correctly, and so we cannot let you continue with the HIT.
Done! You can go ahead and submit the HIT. Thank you!

You can also feel free to leave any comments below about how the experiment went, but that's up to you. Did everything seem to work OK?