White Shirts Experiment

Originally discovered on this site. I have also written it out in case that site is down:

First part:
You will watch a video in which there are people with white shirts and black shirts passing two balls.
-- Your objective is to count how many times the ball is passed by the people with WHITE shirts.

--only watch it ONLY ONCE before you go on to the next section--do not cheat
Here is the link to the video--when it loads, press the green button to play:

http://viscog.beckman.uiuc.edu/grafs/demos/15.html

Second Part:
After you have watched the video, go to the following link to see how you did:

http://free.mailinfo.com/web/reality/step2.htm