Peace Attitude and Friendliness Influence Cooperative Choices in Context of Uncertainty

The choice of a strategy in a context of uncertainty such as the iterated Prisoner's Dilemma game can be influenced by many factors. There is limited evidence about how these factors affect the cooperative choices when the player receives different types of feedback in terms of pay-off. The aim of this study was to investigate the role of peace attitudes and personality factors in cooperation choices. Forty-nine adults filled out the Peace Attitude Scale and the Big Five Questionnaire and were submitted to five versions of the iterated Prisoner's Dilemma game (tit for tat, cooperate, unforgiving, random, and defect). The results showed that participants with high levels of peace attitude and friendliness cooperated more than participants with low levels of peace attitude and friendliness in tit for tat and cooperate settings, but changed strategy in the unforgiving, random, and defect settings.