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28 Cards in this Set
- Front
- Back
evidence:
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supported material known or discovered, but not created by the advocate.
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forms of evidence. facts:
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descriptions of events, object, persons, or places that are empirically verifiable
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statistics:
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quantified descriptions of events, objects, person, places, or other phenomena
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examples:
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descriptions of individual events, objects, persons, or places
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hypothetical examples:
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examples made up used to explain an idea, but shouldn't be used as evidence for a claim.
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literal examples:
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events that actually happened, used for evidence and subject to the criteria for reasoning by example
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testimony:
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authoritative opinion evidence that interprets or judges events, objects, persons, or places
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weak testimony: conclusionary evidence:
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testimony in which only a conclusion is stated, with no indication of how conclusion was arrived at.
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classifications of evidence, primary evidence:
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comes from a source closest to the actual happening a source with firsthand information.
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secondary evidence:
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comes from a source that is at least one step removed from the actual happening, who has only secondhand info.
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expert evidence:
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comes from a source who is experienced and knowledgeable in a subject
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lay evidence:
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comes from a source who is neither experiences or knowledgeable in are of discussion
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casual evidence:
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evidence that naturally occurs without anyone trying to create it as evidence
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created evidence:
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something purposely recorded for future use (ex. birth certificate, yearbook as evidence there aren't enough minority students)
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tests of evidence, source credibility:
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examines whether the source of information has the background, knowledge, expertise, and opportunity to be relied upon
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source bias:
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whether the source of evidence has any self-interests that could distort perceptions or reports
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recency:
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considers whether the evidence came from an appropriate time period for the conclusion
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internal consistency:
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source doesn't say one thing at one time and the opposite at another
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completeness:
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refers to whether the source of evidence, or the evidence as presented in an argument, provides enough info for a critical thinker to accept
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corroboration:
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asks whether other qualified sources agree with this source of evidence
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Perella's hierarchy of...
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evidence
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Level 1, assertion:
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the arguer says that some evidence is true without providing any verification
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Level 2, judicial notice or common knowledge:
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when all parties agree to a fact, so there is no need to provide testimony to support it. involves ideas everyone is expected to believe even though the ideas may not be true
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Level 3, lay opinion:
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includes using, as evidence, reasoned opinion by people outside of their areas of expertise
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Level 4, expert opinion or consensus of lay opinion:
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reasoned opinion of someone about a subject within his or her field of expertise. agreement of the reasoned opinion of many people outside of their fields of expertise
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Level 5, empirical study and the consensus of expert opinion:
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well designed, observational research about the subject, agreement of several people who are experts in their field
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Level 6, consensus of studies:
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agreement among several well-designed research studies.
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Fallacies associated with evidence:
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-suppressed evidence (overlooked evidence)
-poisoning the will (suppressing evidence that eliminantes a source of evidence form consideration by claiming the source is flawed when there is no true relationship between the alleged flaw and reliability of source) -slippery slope -solid slope (act(s) should be carried out because it won't have significant consequences, when no evidence given to support, etc. -self-evident truths (appeal to beliefs) -argument from authority (something is true because an authority figure accepts the claim) appeal to traditions (because it's been done in the past -appeal to anonymous authority (claim should be accepted based only on evidence that unidentified authorities accept it -appeal to the people (argument by consensus, bandwagon appeal) -common person appeal (common man appeal) -appeal to pride (flattery) -snob appeal (accept something based on the fact that famous people accept it) -appeal to common practice (something is right cause others do it) -ad nauseum (reasoning that a claim is true based onlky on evidence that is has been made so often -significance (misuse of statistics, questionable statistics and uses of it) |