Final answer:
Derived credibility, initial credibility, and terminal credibility are essential concepts in evaluating a speaker's trustworthiness and persuasiveness during a presentation.
Explanation:
Derived credibility is the audience's judgment of the speaker's credibility throughout the speech, influenced by delivery, language, and honesty. Initial credibility pertains to the speaker's credibility at the start of the speech, based on factors like introductions and prior knowledge. Terminal credibility is the credibility at the end of the speech, impacting the audience's final decision and future reception of the speaker.
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