research and credibility. to be effective and ethical, supporting materials should be sufficient ...
TRANSCRIPT
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Research and Credibility
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To be effective and ethical, supporting materials should be sufficient accurate relevant timely free of biases
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The Internet
Indexes
Databases and search engines
Print reference works
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Initial expertise, trustworthiness recognized before a
presentation begins
Derived gain credibility during the presentation
Terminal credibility at the end of the presentation
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Ethos
Pathos
Logos
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Perceived personal character of the speaker
Dimensions of ethos goodwill expertise trustworthiness dynamism
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Emotional proofs or reasons to believe in something
Ways to enhance pathos personalize the issue, problem, topic appeal to listeners’ needs and values bring material alive
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Rational or logical proofs
Forms of reasoning Inductive
Uses specific examples to draw a general conclusion
Deductive Shows how a general conclusion applies to
specific examples
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Go to the person instead of the idea
“You can’t believe what Jane Smith says about voting because she doesn’t vote.”
“We shouldn’t stay here and listen to an ex-con and a confessed criminal tell us how to restore values to our teens.”
Bush and Obama
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Argue that because many people believe or act in a particular way, you should too. “Carpooling to cut down on the campus parking
problem is a stupid idea. Look around – nobody carpools.”
“You need to try using Brand X; 10,000 satisfied customers can’t be wrong.”
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Argue that once we take the first step, more and more steps inevitably will follow
“Restrictions on logging is only the first step. Next, the environmentalists will want to prohibit any timber cutting. Pretty soon, we won’t be able to build homes or furniture.”
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A broad claim based on too few examples or too limited evidence
“Three congressional representatives have had affairs. Therefore, members of Congress are unethical.”
“Brand X worked for me! Therefore, everyone should buy Brand X.”
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Arguments that attempt to deflect listeners from relevant issues
Victor confronted his boss about recent wage cutbacks. His boss responded, “Well, you could be making $35 a week as I did when I was your age.”
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An argument that wrongly suggests there are only two options
“Either abolish fraternities on our campus or accept the fact that this is a party school where drinking is more important than learning.”
“America, love it or leave it.”
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Generalize a person's authority or expertise in a particular area to other areas that are irrelevant to the person’s experience and knowledge
“World-famous athlete Michael Jordan urges us to buy a particular brand of underwear.”
We Love Apple!