What term refers to informal rules within a group, such as addressing individuals with titles like Mr. or Ms.?

The term that refers to informal rules within a group, including addressing individuals with titles such as Mr. or Ms., is group norms. Group norms are the unwritten guidelines that dictate how members of the group are expected to behave towards one another, including forms of address, communication styles, and general conduct. These norms help establish a sense of order and predictability within the group, allowing members to interact in a manner that is respectful and promotes cohesion.

Group norms can vary significantly among different groups and cultures, as they are shaped by the values, beliefs, and customs of the members. Understanding group norms is essential for effective communication and interaction within any social or professional setting.

Other options, such as social contracts, group dynamics, and behavioral expectations, are related concepts but do not specifically refer to the informal rules regarding address and interaction among group members. Social contracts usually pertain to the broader agreements that govern relationships and responsibilities among individuals. Group dynamics focuses on the processes involved in the interactions and behaviors of a group as a whole, while behavioral expectations refer more generally to what is anticipated from individuals within any context, not exclusively in the realm of informal group interactions.