There are slightly unethical ways to get some weak evidence on this.
Get two groups, assign one with a irrelevant but silly and the other with a irrelevant but not silly belief as their marker. Then have the two groups compete to try and recruit a limited pool of preselected people to their cause. Then set up a game where numbers help, but defection is possible and hurts the team quite a bit, and let people know this.
Its slightly unethical because it has some potential to go nasty as some previous experiments on blue vs. green have.
There are slightly unethical ways to get some weak evidence on this.
Get two groups, assign one with a irrelevant but silly and the other with a irrelevant but not silly belief as their marker. Then have the two groups compete to try and recruit a limited pool of preselected people to their cause. Then set up a game where numbers help, but defection is possible and hurts the team quite a bit, and let people know this.
Its slightly unethical because it has some potential to go nasty as some previous experiments on blue vs. green have.