ril week 4 searching the databases
TRANSCRIPT
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Research and Information Literacy
Michael Kahn
Based on a PowerPoint Prepared by Professor Susan Acampora
RESEARCH STRATEGY: LIBRARY DATABASES
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• Research Question: To what extent has it been proven if cell phones cause cancer?
• How would you find scholarly journal articles that discuss this question?
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• Databases• Boolean Searching• Reading Your Results
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WHAT IS A DATABASE• A database is any collection of data that can be retrieved using organized search
procedures - Badke, 49.
• Databases we don’t call databases.
• Google-It is a collection of webpages.
• Encore-is a collection of bibliographic records for library books, ebooks, CDs, videos, etc
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SO WHAT DO WE CALL DATABASES?• Academic databases
• Created by EBSCO, GALE and PROQUEST and similar companies
• Periodicals are information sources published over a period of time, daily, weekly, monthly, quarterly….
• Examples are newspapers, magazines, trade journals, scholarly journals.
• Trade Journals-articles that deal with job industry information
• Scholarly journals-original research articles
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WHERE ARE THE LIBRARY DATABASES
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YOU CAN BROWSE ALPHABETICALYOR BY SUBJECT
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LET’S BROWSE ALPHABETICALLY AND LOOK AT ACADEMIC SEARCH COMPLETE
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ACADEMIC SEARCH PREMIER
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WHO DO YOU THINK YOU ARE TALKING TO ME LIKE THAT?
• Don’t search a database like you search Google!
• We often search Google using natural language.
• We type in full sentences, like-
• Do cell phones cause cancer• Google gives 1,460,000 results.
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DISCUSSION:
• Select Terminology for searching
• Identify appropriate databases for research topics and determine their purpose and coverage
• Introduction to multidisciplinary sources such as: Credo, Academic Search Complete
• Apply search techniques and advanced database features
• Work with LinkSource to obtain articles outside of Gill Library
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3 STEPS IN CREATING A SEARCH STRING
1.Write down the research question
2.Isolate key concepts in the research question
3.Add Boolean Operators
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1. WRITE DOWN THE RESEARCH QUESTION
• Research Question: Do cell phone use cause cancer?
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• Isolate Key Concepts In Your Research Question:
• Do cell phones cause cancer?Cell Phones Cancer
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BOOLEAN LOGIC
Boolean Logic allows you to combine your search terms to help you find exactly what you need
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BOOLEAN OPERATORS
• AND = limit your results
• OR = broaden your results
• NOT = will eliminate results with the term following NOT
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EXAMPLE
or both heart and lung.
AND OR NOT
Each result contains all search terms
Each result contains at least one search term
Result does not contain the specific search term
The search “cell phones” AND cancer produces
results that have both cell phone and cancer
The search “cell phone” OR “mobile phone”
produces results that have either cell phone or mobile
phone (or both.)
The search “cell phone” NOT landline produces results that have cell
phone but not the landline.
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• AND-Example• We want results with both terms
• cell phones cancer
Cell phones AND cancer
only yields result that have both words, cell phones and cancer in them.
Let’s search for articles and look at our results!
cell phones AND cancer
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EXAMPLE“CELL PHONES” AND CANCER
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EXAMPLE RESULT
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EXAMPLE OF OR
OR-BROADEN YOUR SEARCH AND PRODUCES MORE RESULTS
“cell phones”
AND
cancer
OR
“mobile phones”
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“CELL PHONES” AND CANCER=382 RESULTS
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“CELL PHONES” OR “MOBILE PHONES”AND CANCER=438 RESULTS
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TRUNCATION SYMBOL *(SOME DATABASES USE ?)
• Replace the ending of a search term with an * to find all variations of that word.
Typing Searches forCell phone* Cell phone, cell phones
Child Child, child’s, children, children’s
Legal* Legal, legality, legalization
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EXAMPLE OF TRUNCATION
“CELL PHONE*” OR “MOBILE PHONE”AND CANCER=504
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TEST YOURSELF AS A CLASS• Research Question:
• Does having more money increase one’s happiness?
money OR wealth AND happiness OR contentment
money
wealth
happiness
contentment
OR AND OR
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MONEY OR WEALTH AND HAPP* OR WEALTH=6,014 RESULTS
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TEST YOURSELF AS A CLASS
• Research Question:
• Is art therapy successful in helping the elderly with depression?“art therapy” AND elderly OR aged OR geriatric AND depression OR mood OR sadness
“art therapy”
elderly
agedANDOR
ORgeriatric
depression
mood
Sad*
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EXAMPLE-1 RESULT
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FOR HELP FINDING RELATED SEARCH TERMS
• Google• Wikipedia • CREDO Mind Map• Gale OneSearch Topic Finder, • Keyword or Subject Fields in book or article
records
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Example-Keyword or Subject Fields in Article Records
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NOT• USE SPARINGLY!!
• Use NOT when you MUST eliminate a term from your search results
• For example: Autism NOT Asperger’s
But be CAREFUL
For example: Looking for Archaeology in Mexico but not New Mexico
Don’t use “Mexico” NOT “New”
While you will avoid “New Mexico” You will also miss “New Discoveries in Mexico”
• Use only to narrow very broad searches
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YOUR TURN:
WHAT IS YOUR TOPICWHAT ARE YOUR TERMS?
Your Subject 1 here Subject 2 Subject 3Related search terms Related search terms Related search terms
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CREDO REFERENCE An Online Tertiary Resource of Tertiary and
Secondary Sources• Credo (formerly xrefer or Credo Reference)• Began in 1999
• A subscription database available at Gill Library
• Full-text online versions 1200 published reference works
• General and subject dictionaries and encyclopedias
• Links between reference works and links to Gill Library
• Topic Pages
• Mind Mapping Tool
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SUBJECT SPECIFIC DATABASES
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SEARCH TECHNIQUES• Boolean Operators
• Wildcards and Truncation
• Modifiers and Limiters
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DEVELOPING A SEARCH STRATEGY WITH BOOLEAN LOGIC
• http://www.youtube.com/watch?v=CoUzX78rg5o
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REMEMBER: KEYWORD VS SUBJECT SEARCHING
• Most databases default to searching by keyword anywhere in the article record.
• If you are finding too many search results or too many unrelated search results try Subject Searching which looks for your term in the subject field of each record
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THESAURUS OR ONLINE SUBJECT GUIDE
• Check to see if the database
has a Thesaurus or Subject Term
list for more subject terms
to search with.
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LIMITERS AND MODIFIERS
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LIMITERS
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MODIFIERS
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ADDITIONAL MODIFIERS
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“CELL PHONE*” OR “MOBILE PHONE*” AND CANCER=562 RESULTS
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“CELL PHONE*” OR “MOBILE PHONE*” AND CANCER+FULL TEXT LIMITER=366 RESULTS
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“CELL PHONE*” OR “MOBILE PHONE*” AND CANCER+FULL TEXT AND SCHOLARLY (PEER REVIEW) JOURNALS LIMITER+ =204 RESULTS
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“CELL PHONE*” OR “MOBILE PHONE*” AND CANCER + FULL TEXT, SCHOLARLY (PEER REVIEW) JOURNALS AND DATE LIMITER =108 RESULTS
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NESTING-VERY IMPORTANT Use parenthesis to separate your ORs from you ANDs and your
NOTS if you are entering your search in one search box.
(“cell phones” OR “mobile phones”) AND cancer
(money OR wealth) AND (happiness OR contentment)
(“art therapy” OR “music therapy”) AND (elderly OR aged OR geriatric) AND (depression OR mood OR sadness)
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EXAMPLES OF NESTING
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FINALLY, NESTING• Show nesting video
• http://lib.colostate.edu/tutorials/advboolean.html
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LET’S START SEARCHING
See Lab Exercise Assignment to practice our database searching skills!
Remember to do Homework as posted in the LibGuide