Library Research and Web Evaluation- Nagel
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Transcript of Library Research and Web Evaluation- Nagel
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INTRO TO LIBRARY RESEARCHENGL 1101
Fall 2012
Erin L. Nagel
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Library research
• What do I want to know?• Define an information need and develop a strategy
• Where do I find it?• Know where to look
• How do I know if it’s right for me?• Evaluate information before you use it
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Define an information need
• Review your assignment• How many sources? What type(s)? What is the
audience? What is the intended purpose?
• Brainstorm for ideas• Talk to friends; browse web; read newspaper
• Identify main topic and related concepts• Use a thesaurus; break down by subtopic
• Put it all together• Develop a search strategy
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Search strategy• Use “ “ or ( ) to keep words together & in order, i.e.,
“senior citizens” or (senior citizens)• Connect with Boolean operators
AND = narrow
OR = expand
NOT = exclude
• AND is automatically used by Google and other search engines to combine terms.
• Sometimes a program will use a + or – to substitute for AND or NOT
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PUT IT INTO PRACTICEDeveloping search terms
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Search terms• Use these anywhere
CONCEPT 1
Main topic
CONCEPT 2
Related concept
CONCEPT 3
Subtopic
AND AND
OR
synonym
OR
synonym
OR
synonym
OR
synonym
OR
synonym
OR
synonym
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Know where to look• Looking for books?
• Use books for comprehensive information, often with an historical perspective
• Find books in the library catalog
• Looking for articles?• Articles are shorter and more current than books. Use when you
need in-depth but narrowly focused information• Find articles in an article database
• Looking for internet resources?• Internet resources are the most current sources for information.
Use the internet when you are looking for current information on a broad variety of topics
• Find internet resources online, but not just anywhere…
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How to find: Internet Resources• Search engines not all created equal!• Subject directories organized links to resources
• Online reference Reference sources (dictionaries, encyclopedias, etc.)
• Online periodicals Some are free• Web portal may be general or subject-specific• Professional & Trade organizations websites provide industry news, directories, etc.
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PUT IT INTO PRACTICESearching the internet
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Evaluating Information• Authority• Currency• Content
• Audience• Purpose/Scope• Objectivity/Bias• Accuracy• Quality
TIP: Trust no one!
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Evaluate: AuthorityWho wrote the information?What are his/her/their credentials? What affiliations, if any, does the author have?
Is contact information provided?Who published the work? Who sponsored the work?
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Evaluate: CurrencyWhen was the work published? Are there multiple editions? Examine currency of references
NOTE: Old ≠ Bad! ex: Historical information does not need to be revisited as often as technological information
© 2012
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Evaluate: Content
Who is the intended audience? What is the purpose? What is the scope? Examine objectivity Examine for accuracyIs the information verifiable? Evaluate overall quality
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PUT IT INTO PRACTICEEvaluating websites
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Step 1: Look at the URL• The URL gives you clues about the author, owner, and/or
publisher of the information• Is it a personal webpage?
• Look for symbols like ~ or %, names, or words like users or members
• What type of domain?• .org, .com, .edu, etc.
• What else does the domain name tell you?• Does it make sense with your topic?
protocol://subdomain.domain.topleveldomain/folder/file.type
protocol://subdomain.domain.topleveldomain/folder/page#anchor
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URL domainsExtension Type
.edu Educational institution
.com Commercial organization
.gov Government agency
.mil Military entities
.net Internet service providers
.org Non-profit, religious, charity
.aero Air transportation industry
.biz Businesses
.coop Cooperatives
.info Information
.museum Museums
~ Personal Web page
2-letter country code
Web server in specified country
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Your turn!Topic: Alvin Ailey
• http://www.pbs.org/wnet/freetodance/biographies/ailey.html• Great Performances: Free To
Dance - Biographies - Alvin Ailey
• http://movingthroughspace.wordpress.com/2010/10/22/alvin-aileys-revelations/• Alvin Ailey's Revelations «
Move Through Space
Topic: Birds
• http://www.members.tripod.com/~DAdams/qkbrdinf.html• Dani's Pet Bird Care and
Safety Tips and Information
• http://www.birdsource.org/gbbc/• The Great Backyard
Bird Count
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Step 2: Skim for basic info
• Who is the author? Is contact information provided? • Look for “Contact us” link, email address, etc.
• What are the author’s/producer’s values? • What are the author’s credentials? Why should you believe him/her? • Look for “About” link
• How current is the information? • Look for copyright or update date (usually at the bottom)
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Step 3: Assess the content• Are sources provided?• Are there links to suggested resources or further reading?• If bias is present, are there links to other points of view?
• Look for footnotes or web links to sources cited. Look for “See also” or “Related links”
• Do the links work?
• What is the page’s purpose?• Inform, sell, entertain, rant, parody, persuade?
• Is the information complete?• Do the conclusions seem logical?• Is it professional?
• Look for grammar errors and typos. How does the page “feel”?
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Your turn!Topic: Alvin Ailey
• http://www.pbs.org/wnet/freetodance/biographies/ailey.html• Great Performances: Free To
Dance - Biographies - Alvin Ailey
• http://movingthroughspace.wordpress.com/2010/10/22/alvin-aileys-revelations/• Alvin Ailey's Revelations «
Move Through Space
Topic: Birds
• http://www.members.tripod.com/~DAdams/qkbrdinf.html• Dani's Pet Bird Care and
Safety Tips and Information
• http://www.birdsource.org/gbbc/• The Great Backyard
Bird Count
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Step 4: See what others say
• Who else uses the page?• Enter the URL into http://alexa.com • Try a Google search with “link:www.pagename.com/file/path.htm”
• What else is known about the author/creator/publisher?• Enter the URL into http://whois.net • Perform an internet search
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Your turn!Topic: Alvin Ailey
• http://www.pbs.org/wnet/freetodance/biographies/ailey.html• Great Performances: Free To
Dance - Biographies - Alvin Ailey
• http://movingthroughspace.wordpress.com/2010/10/22/alvin-aileys-revelations/• Alvin Ailey's Revelations «
Move Through Space
Topic: Birds
• http://www.members.tripod.com/~DAdams/qkbrdinf.html• Dani's Pet Bird Care and
Safety Tips and Information
• http://www.birdsource.org/gbbc/• The Great Backyard
Bird Count
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Step 5: Final decision
• Is it good enough?• Would you find information of a similar quality in a printed or subscription resource?
• Is it right for your assignment based on your answers in the previous steps?
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Putting it all together• Know your assignment• Clarify your topic• Be flexible in your search• Critically evaluate your resources
“Intro to Library Research” © 2012 Erin Nagel uses material from “Google and Beyond Slides” by UC Berkeley Library, Copyright © 2012 The Regents of the University of California available at http://www.lib.berkeley.edu/TeachingLib/Guides/Internet/Handouts.html usedunder a Creative Commons Attribution-NonCommercial 3.0 Unported License (http://creativecommons.org/licenses/by-nc/3.0/ )