Final answer:
The use of coercive power is usually ineffective because it leads to resentment and poor decision making.
Step-by-step explanation:
The use of coercive power is usually ineffective because group members resent the threats and may use coercive power themselves, leading to poor decision making. Coercive power refers to changing behavior to please an authority figure or avoid aversive consequences. It often undermines group cohesion and critical thinking. For example, when a leader uses coercive power, it can create resentment among group members, making them less likely to support the leader's decisions.