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Chapter Fifteen Developing Arguments for the Persuasive Speech
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Chapter Fifteen Table of Contents zWhat is an Argument? zVariations in Argument: Types of Claims, Evidence, and Warrants zRefining the Argument zFallacies in Reasoning: The Pitfalls in Arguing*
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What is an Argument? zArgument- a stated position with support, for or against an idea or issue.*
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What is an Argument? zStating a Claim zProviding Evidence zGiving Warrants*
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What is an Argument?: Stating a Claim zClaim- also called a proposition; declares some state of affairs, often stated as a thesis statement. yAnswers the question, “what are you trying to prove?”*
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What is an Argument?: Providing Evidence zEvidence- material that provides grounds for belief in a claim. ystatistics ytestimony yfacts yexamples ynarratives*
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What is an Argument?: Giving Warrants zWarrant- a statement that provides the logical connection between some evidence and a claim. yWrite down the claim. yList each possible piece of evidence you have in support of the claim. yWrite down the corresponding warrants that link the evidence to the claim.*
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Variations in Argument: Types of Claims, Evidence, and Warrants zTypes of Claims zTypes of Evidence zTypes of Warrants*
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Variations in Argument: Types of Claims zClaims of fact- focus on conditions that actually exist, existed, or will exist in the future. zSpeculative claims- probable answers to questions for which no answers exist. zClaims of value- addressing issues of judgement. zClaims of policy- recommend a specific course of action to be taken.*
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Variations in Argument: Types of Evidence zAudience Knowledge and Opinions zSpeaker Knowledge and Opinions zExternal Evidence zTests of Evidence yrelevance ytimeliness ysource credibility*
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Variations in Argument: Types of Warrants zMotivational warrants- use the needs, desires, emotions, and values of audience. zAuthoritative warrants- rely on an audience’s beliefs about the credibility or acceptability of a source of evidence. z Substantive warrants- operate on the basis of an audience’s beliefs about the reliability of factual evidence. z Warrants by cause- offer a cause and effect relationship as proof for a claim.*
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Variations in Argument: Types of Warrants zWarrants by sign- infer that such a close relationship exists between two variables that the presence or action of one may be taken as the presence or action of the other. z Warrants by analogy- compare two similar cases and infer that what is true in one is true in the other.*
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Refining the Argument zAll attempts at persuasion are subject to counter-persuasion. zInoculation effect- by anticipating counter-arguments and then addressing or rebutting them, you can “inoculate” your listeners against the “virus” of the viewpoints.*
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Fallacies in Reasoning: The Pitfalls of Arguing zFallacy- a false or erroneous statement, or an invalid or deceptive line of reasoning. yAvoid making them in your speeches.*
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Fallacies in Reasoning: The Pitfalls of Arguing zBegging the Question zBandwagoning zOvergeneralization zAd Hominem Argument*
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Fallacies in Reasoning: Begging the Question zStating in an impressive sounding way a claim that really has no substance at all.*
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Fallacies in Reasoning: Bandwagoning zAssigning a claim greater substance by making it appear more popular than it really is.
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Fallacies in Reasoning: Overgeneralization zAttempts to support a claim by asserting that a particular piece of evidence is true for all persons concerned.*
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Fallacies in Reasoning: Ad Hominem Argument zAttacking an opponent instead of the opponent’s argument. yAttempting to incite an audience’s dislike for an opponent.*
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