A term commonly used to describe the supporting material in persuasion.
Gives an objective foundation to your arguments,...
 1. Friendly Audience
 they already support the advocates position
very little evidence is needed as support.
 2. Neutr...
 Precedent Evidence
 Statistical Evidence
 Testimonial Evidence
 Hearsay Evidence
 Common Knowledge Evidence
 Precedent Evidence : is an act or event which establishes expectations for future
conduct.
2 Forms: Legal & Personal
o L...
 On order to tell us one how you know something, you need to tell them where
the information came from.
 4 ways credibil...
2) Qualifications of the Source: does the advocate give you
reason to believe that the source is competent
and well inform...
 1) Establish Conclusive Proof for your Position: using
evidence in such a way that the law will not permit
it to be cont...
5 Tests of
Evidence:
1) Recency: Is the evidence too old to be current relevance to the
issue?
2) Sufficiency: Is their ...
Evidence is the building block of an argument.
Evidence determines the accuracy of an argument.
Evidence is more available...
Evidence
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Evidence

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Evidence

  1. 1. A term commonly used to describe the supporting material in persuasion. Gives an objective foundation to your arguments, and makes them more than a mere collection of personal opinions or prejudices. Evidence needs to be carefully chosen to serve the needs of the claim and to reach the target audience Evidence plays an important role in many academic disciplines, including science and law, adding to the discourse surrounding it. All good arguments must be supported by a strong foundation of evidence.  The amount of evidence you need depends on the degree of controversy of the claim you are trying to support and your credibility as an advocate.
  2. 2.  1. Friendly Audience  they already support the advocates position very little evidence is needed as support.  2. Neutral Audience  are waiting to see what type of support can be provided in order to move them over to one side or the other. The quality of evidence used is important.  3. Hostile Audience  Opposed to the advocate’s point of view. A great deal of high-quality evidence is needed .
  3. 3.  Precedent Evidence  Statistical Evidence  Testimonial Evidence  Hearsay Evidence  Common Knowledge Evidence
  4. 4.  Precedent Evidence : is an act or event which establishes expectations for future conduct. 2 Forms: Legal & Personal o Legal- is one of the most powerful and most difficult types of evidence to challenge. Courts establish legal precedent. o Personal- Occurs as a result of watching the personal actions of others in order to understand the expectations for future behaviors.  Statistical Evidence: Consists primary of polls, surveys, and experimental results from the laboratory.  Testimonial Evidence: is used for the purpose of assigning motives, assessing responsibilities, and verifying actions for past, present and future events. 3 Forms: Eyewitness, Expert-witness, & Historiography  Hearsay Evidence : can be defined as an assertion or set of assertions widely repeated from person to person, though its accuracy is unconfirmed by first hand observation.  Common Knowledge Evidence: this type of evidence is most useful in providing support for arguments which lack real controversy.
  5. 5.  On order to tell us one how you know something, you need to tell them where the information came from.  4 ways credibility of the evidence can be enhanced by: 1) Specific Reference to Source : Does the advocate tell you enough about the source that you could easily find?
  6. 6. 2) Qualifications of the Source: does the advocate give you reason to believe that the source is competent and well informed in the area in question? 3) Bias of the Source: even if expert, is the source likely to be biased on the topic? 4) Factual Support: does the source offer factual support for the position taken or simply state personal opinions as fact?
  7. 7.  1) Establish Conclusive Proof for your Position: using evidence in such a way that the law will not permit it to be contradicted, or that it is strong and convincing enough to override objections to it.  2) Establish Circumstantial Proof for your Position: This is where the various types of evidence are used to form a link strong enough to prove a point. Using the different types of evidence as support gives the argument the strength needed to establish the accuracy of the argument.
  8. 8. 5 Tests of Evidence: 1) Recency: Is the evidence too old to be current relevance to the issue? 2) Sufficiency: Is their enough evidence to justify all of the claims being made from it. 3) Logical Relevance: Does the claim made in the evidence provide a premise which logically justifies the conclusion offered? 4) Internal Consistency: Does this source make claims that are contradicted by other claims from the same source. 5) External Consistency: Are the claims made by this source consistent with general knowledge and other evidence?
  9. 9. Evidence is the building block of an argument. Evidence determines the accuracy of an argument. Evidence is more available to us, from more sources, in a variety of formats than ever before. Works Cited: Marteney, Jim. Sterk Jack, Communicating Critical Thinking. Copy write 2007.
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