We define a group has two or more individuals, interacting and interdependent, who have come together to achieve particular common objectives. A group can range in size from two members to thousands of members.

Instead, it manifests when two or more people come together, forming a bond that is characterized by interaction, mutual influence, and a shared perception of being part of an identifiable whole. This shared identity and connection are at the core of what makes a group.

A common definition of a “group” is that it is composed of three or more people who have come together for a common reason (e.g., sports teams, work groups, classrooms, therapy groups), whose activities resulted in some kind of output (e.g., scoring goals, producing a product, learning, improved functioning), and who engage in some form of ongoing interpersonal interactions (Parks & Tasca, 2020).