Trustworthiness, sometimes called “character”, refers to the assessment of whether the communicator will be inclined to tell the truth. Expertise, alternatively referred to as “authoritativeness”, “competence”, or “qualification”, pertains to the assessment of whether the communicator is in a position to know the truth and what is right or wrong. In this current study, as defined by Pornpitakpan (2004), expertise of leaders in the eyes of employees is regarded as the extent to which employees perceive their direct manager as a source of valid assertions and as an individual who possesses the necessary skills and knowledge for his or her position. The trustworthiness aspect of credibility is operationalized as the degree of confidence of employees in their direct manager, the degree of acceptance of their direct manager, and the acceptance to the message that the manager communicates.