Stop and Think!
By Lykke E. Andersen*, La Paz, 26 February 2007.

I recently came by a simple but astonishing experiment that shows you how easily you can be deceived. If I told you too much about it, I would ruin it for you, so please do the experiment yourself before reading my comments.

You will have to watch a short video of about 1 minute. In the video you will see a group of basketball players, some in white and some in black passing two balls around. Your goal is to count how many times the ball is passed by those wearing white shirts. It's that simple. Once the movie is over, write down the number of passes you have counted.

Only watch the video once!

VIDEO LINK

After you have watched the video, go to this page to understand your results and read my comments:

RESULTS 

(*) Director, Institute for Advanced Development Studies, La Paz, Bolivia. The author happily receives comments at the following e-mail: landersen@inesad.edu.bo.

Ó Institute for Advanced Development Studies 2006. The opinions expressed in this newsletter are those of the author and do not necessarily coincide with those of the Institute.

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