What are techniques that groups develop to control the behavior of their members called?

The correct answer is norms. In the context of group dynamics, norms refer to the shared expectations and informal guidelines that govern the behavior of members within a group. These norms help establish what is considered acceptable or unacceptable behavior and play a crucial role in shaping interactions among members. Norms can develop organically over time within a group as members influence each other and adapt to the group's culture and values.

Unlike policies and rules, which are often formalized and documented, norms are typically unwritten and can be more flexible. They evolve based on the group's experiences and the social context in which they operate. Guidelines might offer advice on behavior but lack the binding nature of norms that effectively regulate how members act and relate to one another. Through the establishment and adherence to norms, groups can foster cohesion, collaboration, and a sense of belonging, making them integral to group functioning.