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Key concepts, Boolean operators, website evaluation
 

Key concepts, Boolean operators, website evaluation

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  • Ownership is clearly displayed and it is a well recognized and trustworthy brand
  • This is billed as consumer health library; notice that the headache and migraine page is sponsored by a migraine medication; more comfortable with a non-profit, professional organization, etc. than private company or industry
  • An "About This Site" link appears on many sites; if it's there, use it. The purpose of the site should be clearly stated and should help you evaluate the trustworthiness of the information.
  • Should be clear where the information came from through inclusion of accurate citations in a reference list; This NIH Vitamin D resource has multiple means of getting to resources at bottom of page;
  • (from Medline database); Is there an editorial board? Do people with excellent professional and scientific qualifications review the material before it is posted?
  • When information was created or last updated should be clearly displayed
  • (American Academy of Family Physicians ); There should always be a way for you to contact the site owner if you run across problems or have questions or feedback; if there is something to hide then often the contact information will be absent
  • Use red felt pen to show a few things: frequency of change, nature of some comments, who is editing There is some great information in Wikipedia but it is the fact that people can add whatever they want, opinions, made up facts (AKA lies), etc, that makes it the wrong source to cite; it is especially gonna be filled with junk when it is a highly debated and politicized topic like universal healthcare
  • (references section from Wikipedia Universal Health Care entry); in this there are some links from WHO, Canadian govt, etc---now to muddy the waters …( Nature 438 , 900-901 (15 December 2005)) found wikipedia science entries they studied were about as accurate as Encyclopedia Brittanica

Key concepts, Boolean operators, website evaluation Key concepts, Boolean operators, website evaluation Presentation Transcript

  • SEARCH TIPS
  • GENERAL SEARCH TIPS
    • Identify key concepts in research statement or question
    • Build search strings using Boolean Operators (and other search tools)
    • Choose which database(s) to search
      • If you need assistance, Ask-a-Librarian
    • Set Limits to narrow your results
    • Contact a librarian if you need help!
  • STEP 1: SELECT KEY CONCEPTS TO BUILD SEARCH WITH.
    • What effect does nutrition have on learning?
  • STEP 1: SELECT KEY CONCEPTS TO BUILD SEARCH WITH.
    • What effect does nutrition have on learning ?
  • STEP 1: SELECT KEY CONCEPTS TO BUILD SEARCH WITH.
    • I’m looking for articles on hyperhidrosis (aka excessive sweating or perspiration).
  • STEP 1: SELECT KEY CONCEPTS TO BUILD SEARCH WITH.
    • I’m looking for articles on hyperhidrosis (aka excessive sweating or perspiration ).
  • STEP 1: SELECT KEY CONCEPTS TO BUILD SEARCH WITH.
    • I need articles on epidural and subdural hematomas but not subarachnoid hematomas.
  • STEP 1: SELECT KEY CONCEPTS TO BUILD SEARCH WITH.
    • I need articles on epidural and subdural hematomas but not subarachnoid hematomas .
  • STEP 2: BUILD A SEARCH STRING AND—OR—NOT & other search tools
  • The AND Operator Measles: 20,604 Results Mumps: 7,900 Results Measles AND Mumps: 3,665 Results PubMed search results 06/29/09
  • The OR Operator Measles: 20,604 Results Mumps: 7,900 Results Measles OR Mumps: 24,838 Results PubMed search results 06/29/09
  • The NOT operator Measles: 20,604 Results Measles NOT Mumps: 4,234 Results Mumps: 7,900 Results Note: Beware of using NOT because you can “not” yourself out of good search results! PubMed search results 06/29/09
  • Use other search operators such as:
    • Quotation marks to search as a phrase
    • ex. “heart attack” searches as a phrase and not for individual instances of the words heart or attack
    • Truncate words
    • ex. “inject*” searches injects, injected, injecting, injection, etc.
  • CONSTRUCTING THE SEARCH STRINGS
    • What effect does nutrition have on learning ?
    • nutrition AND learning
    • ( nutrition OR diet) AND (learning OR education)
  • CONSTRUCTING THE SEARCH STRINGS
    • I’m looking for articles on hyperhidrosis (aka excessive sweating or perspiration ).
    hyperhidrosis OR ((sweat* OR perspir*) AND (excessive OR abnormal OR profuse))
  • CONSTRUCTING THE SEARCH STRINGS
    • I need articles on epidural and subdural hematomas but not subarachnoid hematomas .
    ((epidural OR subdural) AND hematoma) NOT subarachnoid Note: Beware of using NOT because you can “not” yourself out of good search results!
  • STEP 3: SELECT A DATABASE (AND/OR CAREFULLY SEARCH THE INTERNET).
    • Select a database by:
      • Asking a librarian for help
      • Going to the Databases and Resources page: http://www.uab.edu/lister/tools/
    and/or CAREFULLY search the internet
  • Items to consider when evaluating internet based information
  • Who runs the site? Clear ownership by reputable organization
  • How is the site funded? Conflict of Interest?
  • What is the purpose of the site? Clear statement of purpose and mission
  • References clearly listed Where does the information come from?
  • How is content selected? Clear statement on selection and inclusion/exclusion of information
  • How current is the information? Date posted or last update displayed
  • Does the website provide contact information? In this case, by online form
  • And with what we just went over in mind …
  • Wikipedia: A great place to start… … but not the place to finish.
  • Anyone (essentially) can edit a Wikipedia entry From the revision history of the Universal Health Care Wikipedia entry
  • Wikipedia entries often have links to credible and scholarly resources References section from Wikipedia Universal Health Care entry
  • STEP 4: SET LIMITS
    • In the process of searching, introduce limits:
    • Publication Dates
    • Language(s)
    • Discipline (nursing, medicine, etc.)
    • Type of article (opinion, clinical trial, review, etc.)
    • Free full text
    • Etc.
    • Limits can have great impact on searches:
    • Use them wisely; Start with a broad search (Don’t “limit” yourself out of good resources)
  • Seek the help and assistance of a Lister Hill Library Librarian! http://www.uab.edu/lister
  • Ask-a-Librarian http://www.uab.edu/lister/qpask/
  • Nursing Liaisons http://libguides.lhl.uab.edu/son