Final answer:
Group cohesiveness is a measurement of the extent to which individuals share the group's goals. While a cohesive group may function more effectively, it also faces challenges of group polarization and groupthink as it grows larger.
Step-by-step explanation:
Group cohesiveness is largely a measure of how much individuals share the group's goals. Cohesiveness within small groups typically represents a sense of connection and shared purpose among members. However, as groups grow larger, they might gain more attention and influence, but they also face the risk of division and decreased cohesion, as coordinating the interests and actions of a larger number of individuals becomes more complex.
It is important to recognize that cohesiveness is not determined solely by the clarity or attainability of the group's goals, nor by how much they align with organizational objectives. Rather, the key factor is the extent to which all individual members of the group actually share these goals. Strong cohesiveness can lead to more effective team functioning, yet it also introduces potential challenges, such as group polarization and groupthink, where the desire for harmony may suppress dissenting viewpoints.