Which of the following best describes expert power in leadership?

Expert power in leadership is best described as having superior knowledge. This form of power stems from an individual's specialized skills, expertise, or information that others do not possess. When a leader has expert power, they are recognized for their competence and are respected for their qualifications in a particular domain or field. This knowledge often allows them to influence others and gain trust, as followers look to them for guidance based on their expertise.

In contrast, the other choices reflect different types of power. The first option points to positional power, which is authority granted by one’s job title or role within an organization. The second option relates to reward power, where influence comes from the ability to provide incentives or rewards. The fourth choice refers to referent power, which is based on interpersonal relationships and the perceived caring or likability of a leader. While all these types of power can contribute to effective leadership, expert power specifically highlights the significance of knowledge and expertise in garnering influence.