This document discusses group processes in sports psychology and coaching, with a focus on group cohesion. It defines cohesion as the tendency of a group to stick together and remain united in pursuing objectives. Cohesion has two types: task cohesion related to achieving goals, and social cohesion regarding liking each other. Several tools measure cohesion directly by asking about attraction, or indirectly by assessing relationships. High cohesion relates to better performance. Strategies to enhance cohesion include open communication, trust-building, conflict resolution, feedback, fun team activities, and making the group feel exclusive.