Fox and Guyer's Experiment on Anonymity and Cooperation [1] GROUP [1] NO. OF COOPERATIVE CHOICES [2] CONDITION P = PUBLIC-CHOICE A = ANONYMOUS [3] SEX M = MALE F = FEMALE Source: J. Fox and M. Guyer (1978), "'Public' choice and cooperation in n-person prisoner's dilemma." Journal of Conflict Resolution 22:469-481.