In a dependent group contingency, what happens?

In a dependent group contingency, the entire group's performance determines the reward for all members. This refers to a situation where the success of the group as a whole influences whether or not everyone receives a reward. This type of arrangement encourages teamwork and collaboration, as each individual’s performance can affect the outcome for others in the group.

When group members understand that their efforts directly contribute to a collective goal, it can motivate them to work together more effectively. The focus shifts from individual accomplishments to shared success, promoting a sense of responsibility towards one another within the group.

In contrast, other options describe situations where rewards are based on individual efforts or randomness, which do not align with the principles of dependent group contingencies. The emphasis here is on the interdependence of group members, making option B the correct and fitting choice for understanding this concept in behavior management and applied learning settings.