Furthermore, when the options were fixed so that a boy could not give his group more without sacrificing profits for both groups, the boys still chose to maximize the difference in rewards between groups.
This study showed that the boys in question were more interested in going with the option that provided the largest chance of a larger reward than the other groups would receive.
The participants in this study were girls playing a variety of board games.
They don't think about the results of their actions.
A boy is playing with fireworks.
People enjoy coffee in the fresh air here.
As long as we keep paying money for it they are going to keep paying them.
A man is reading a book on a tablet.
A fellow and a trio of kids gaze at a picture.