What method can best promote equal contributions among group members during a group activity?

Providing specific tasks related to the activity for each group member is the most effective method for promoting equal contributions among group members during a group activity because it ensures that each participant has a clear role and responsibility. This clarity minimizes ambiguity regarding what is expected from each member, which can help maintain engagement and accountability.

When individuals know what they are responsible for, they are more likely to invest effort into their tasks, as their contributions directly impact the overall success of the group. This structured approach encourages members to collaborate effectively, as they can rely on one another to fulfill their assigned roles, thus fostering a sense of collective responsibility.

Additionally, specific task assignments can account for varying skill levels and interests, allowing the group to leverage the strengths of its members while also encouraging development in areas where members may need support. In this way, everyone has a clear avenue to contribute meaningfully, enhancing the collaboration process.

In contrast, options that involve self-selection of roles or designating a leader may inadvertently lead to unequal participation, as some individuals may assume more responsibility or take on dominant roles, while others may withdraw. A lottery system might randomly assign tasks, but without the context of specific roles, it may not ensure that all tasks are being approached meaningfully by all group members.