Susan Wheelan advocates and thoroughly examines group process research—particularly research on the mutual impact of group interaction and individual choices. Her basic introduction to groups explores a variety of definitions, structures, and models of group development. There are five unique stages to group development, each with its own structure and process: 1) dependency and inclusion, 2) counter-dependency and flight, 3) trust and structure, 4) work, and 5) termination. Case scenarios provide familiar situations for assessing group development according to a group’s theoretical stages, roles, and activities. This resource is applicable to a range of new and intact congregational groups, from Sunday school classes to administrative councils.