One way to test these hypotheses, Batson reasoned, is to see if participants cared about whether the flipping of the coin and so the task assignment was done by themselves or by the experimenter. If the egoistic hypothesis is correct, then they should want to flip the coin themselves so that they can rig the outcome. If the other hypothesis involving an ultimate desire to be moral is correct, however, it should not matter who flips. When the experiment was actually run with this choice option, 80% of those who used a coin wanted the experimenter to flip it. This initial evidence thus favors postulating a motive to follow the fairness norm (and perhaps moral norms more generally) for its own sake (Batson and Thompson 2001: 55–56.).