ishment of credibility cannot. The use of beneficial eye behaviors is a tool that can be used by a communicator to try to raise credibility with the receiver.
Paralanguage, the semantics of language, is a nonverbal factor that can contribute to or take away from a person's credibility. Verbal messages such as "I am confident that . . ." are persuasive. Paralinguistic factors such as volume, rate, pitch, and pronunciation have a strong effect on the receiver. The communicator's voice is a large determiner of the receiver's first impression and final impression. Thus, vocal factors are important to credibility establishment. Volume
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