Researchers propose new methods of how to study the stages children go through when they choose to play with one another.
Study reports children are more likely to delay gratification when they and a peer rely on one another to get a reward than when they are left to their own willpower.
According to researchers, chimpanzees make prosocial choices more rapidly than making choices that only benefit themselves.
Caffeine has surprising effects when it comes to team work, researchers say. A new study reveals people who drank coffee gave more positive reviews about group task performance and were more on topic than those who drank decaf.
People who smile following a victory can trigger an opponent to act more aggressively, a new study reports.
Researchers report synchronous movement generated by playing on the swings can encourage young children to cooperate in other activities.
A new study may provide clues as to how cooperative behavior could have evolved differently between men and women.