What is it called when group members value a person's knowledge or expertise?

The correct answer is expert power, which refers to the influence that a person has over others due to their knowledge, skills, or expertise in a specific area. When group members recognize and appreciate an individual's competence or specialized understanding, they are more likely to trust their judgment and follow their lead. This form of power is crucial in group settings, as it fosters collaboration, respect, and effective communication, ultimately leading to more successful outcomes.

Expert power differs from other types of power, such as legitimate power, which is based on an individual's position or title within a hierarchy, or referent power, which stems from personal qualities that inspire admiration and loyalty. Coercive power relies on the ability to impose punishments or sanctions. Each type of power has its place in group dynamics, but expert power is specifically characterized by the value placed on a person's knowledge or expertise.