Example displays of choice stage.
Except for round 1, social information about all 5 group members' choice behaviors in the preceding round was made available to each participant. A: An example display in the frequency-only sub-condition. The number displayed in each box (i.e., option) indicates how many members chose that option in the preceding round (round 1 in this example). B: An example display in the frequency-plus-evaluation sub-condition. In addition to the social-frequency information (lower black numbers), participants were informed of average evaluations (upper red numbers) that members had provided about their chosen options in the preceding round, on a 5-point scale that ranged from 1 (very bad) to 5 (very good). Evaluating options was not mandatory, and a horizontal red bar indicated that no evaluation was contributed about the option.