In one negotiation experiment, three groups of participants were asked to cut in line at an ATM machine. The three groups were asked to give the following three different reasons.
1. Can I cut in line? [40%]
2. Can I cut in line? My brother is in trouble and I need to help him out before it’s too late. [98%]
3. Can I cut in line? I need to. [?%]
What was the success percentage for the third reason?