A psychologist hypothesizes that people are more willing to cooperate with strangers when they expect future interactions with the same people than when they expect to interact only once.
Which experimental finding, if true, would most strongly support the psychologist's hypothesis?
- A
Participants enjoyed the cooperation game more than other tasks.
- B
Most participants completed the study in under an hour.
- C
Cooperation games are often used in economics research.
- Dcheck_circle
Participants in a cooperation game who expected to play with the same partner repeatedly contributed more to a shared pot than participants who expected only one interaction.
Explanation
A directly tests whether expected future interaction increases cooperation. B, C, and D are tangential.