Download - Credibility of Sources How can you tell if a source is going to be credible or reliable ?
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Credibility of Sources
How can you tell if a source is going to be credible or reliable ?
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Primary sources A primary source
is an original object or document -- the raw material or first-hand information.
Eye witness accounts are also a primary source, but are less reliable than a document.
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A primary source is an original object or document -- the raw material or first-hand
information. historical and legal
documents results of an
experiment statistical data pieces of creative
writing art objects eye witness
accounts
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Secondary sources
A secondary source is something written about a primary source.
You can think of secondary sources as second-hand information. If I tell you something, I am the primary source. If you tell someone else what I told you, you are the secondhand source.
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Secondary sources Secondary
sources include: comments on interpretations of discussions about
the original material
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Secondary sources
Secondary source materials can be:
articles in newspapers popular magazines book or movie reviews articles found in scholarly
journals that evaluate or criticize someone else's original research
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What is the source of the information being considered? Publication
-Date - is the information current, or does it need to be current?
-Reputation of publication - is the source well known and trustworthy?-Kind of publication - is it a scientific report, eye-witness account, a work of fiction?
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CARS
CARS is an acronym for . . .
Credibility, Accuracy,
Reasonableness, and Support
Checklist for Information Quality
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CARS
Credibility Check the URL (.gov or .edu) Check the sponsor (a univ or
goverment or medical agency) Can you identify the author? Purpose (are they selling or
informing or just talking?)
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CARS
Accuracy Correctness Up to date (for what it is) Spelling Grammar mistakes
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CARS
Reasonableness Tone (is it angry or whiny or
professional?) Bias (does it lean more toward
one side?) Logic (does it make sense?)
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CARS
Support
Sponsored Cited (research evidence
provided) Contact information
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Author or Speaker
-Qualifications - is he an expert in his field?
-Bias - is he one-sided in his point-of-view?
-Values - what does the author value in regards to the topic?
-Chance for personal gain - does the author stand to benefit from his position?
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Means of getting the Information -Witness or researcher - was the
author or speaker a first-hand witness to the information or did he gather it from some other source?
-Equipment - what kind of equipment was used to record information?
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How Credible?
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How Credible?
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How Reliable?
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How Credible?
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How Reliable?
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Let’s rank some sources! If you were looking for information on
Hurricane Katrina which source would be the most reliable?
A. victim blog B. novel C. newspaper report D. eyewitness account
Which one is the least reliable?
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If you were doing a report on Barack Obama, rank these sources from most reliability to least reliability.
1. A recent Time magazine article 2. An encyclopedia article dated
1/30/05 3. An article in the National Enquirer 4. A blog by Obama’s campaign
manager
1,2,4,3
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Rank the following resources from greatest reliability to least realiability for an essay titled “War in Iraq.”
1. Newspaper article “War in Iraq” by a war correspondent
2. Tabloid article “What They Don’t Let Us Know”
3. Internet site on Iraq and the postwar period
4. Journal of a soldier serving in Iraq
1, 4, 3, 2
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Rank these sources from most reliable to least reliable.
1. Article in The Tennessean 2. Eyewitness account 3. Internet article 4. National Enquirer Magazine
2, 1, 3, 4
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Perhaps the best way to think of the reliability of information is to think of it as existing on a scale, rather than falling into the categories of reliable or unreliable. Information can range from very unreliable to highly reliable and also anywhere in between.
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How can you judge the reliability of the information that you find?
One way is to compare the information about the same topic across multiple sources.
Let’s look at three different sources on the Internet about the same subject:
Elvis Presley
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Let’s compare some sources
and check for reliability. As we visit these websites, ask
yourself: Which one would you judge as having
the highest reliability? Which one would you place lowest on the reliability scale? Which one might fall somewhere in between?
You will need your “Judging Reliability by Comparing Sources” worksheet.
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Here are the websites we will evaluate for reliability:
Discover Elvis http://www.elvis.com/elvisology/faq/faq.asp?qid=23
Elvis Sightings http://www.theholidayspot.com/elvis/apparition.htm
Info Please http://www.infoplease.com/biography/var/elvispresley.html
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How reliable is the Internet?
Let’s check out this website on the tree octopus.http://zapatopi.net/treeoctopus/
•That’s right, it’s a complete hoax!!•The entire website (as well as MANY others) is a joke.•Remember – Don’t believe everything you read…..ESPECIALLY on the Internet.•Question: Is the internet a reliable source?•Answer: Not always….BE CAREFUL!
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Rank these sources from most reliable to least reliable.
1. Internet website 2. Written diary of an eye-witness to
an event 3. Newspaper article from USA Today 4. An article in a supermarket tabloid
2, 3, 1, 4