This experiment has been completed. No more data will be collected.
The experiment originally ran through December 2009. Unfortunately, the results were not entirely clear. We are considering whether to do follow-up studies. When we have enough of a sense of what happened, we'll post a discussion of the data.
The experiment is still here for demonstration purposes. You can participate, but no data will be collected.
Want to be notified when new experiments or results are available? Join our Google Group.