Your SlideShare is downloading. ×
Estrategies for Evaluating Information
Upcoming SlideShare
Loading in...5

Thanks for flagging this SlideShare!

Oops! An error has occurred.

Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Estrategies for Evaluating Information


Published on

Estrategies for Evaluating Information

Estrategies for Evaluating Information

  • Be the first to comment

  • Be the first to like this

No Downloads
Total Views
On Slideshare
From Embeds
Number of Embeds
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

No notes for slide


  • 1. Strategies for Evaluating Information Tomado de Teaching and Marketing Electronic Information Programs , 2003 . Doanld A. Barclay
  • 2. The Basic Strategy for Evaluating Information
    • Question all information regardless of its source.
    • Be reasonable – no information can be absolutely perfect.
  • 3. Currency
    • Is the information up to date?
    • If it is not, does this matter for your purpose?
      • Primary-source information may be old but still valuable.
  • 4. Example Of Currency Not Being Important
    • What year did George Washington die? Any of the following sources could provide the correct (or incorrect) information:
      • A book published in 1830.
      • An article printed in 1928.
      • A Web page created yesterday.
  • 5. Example Of Currency Being Important
      • I need information on a start-up company in which I might invest.
      • I need to decide on the best therapy for my asthma.
      • I need to know how many acres of rainforest remain in the Amazon Basin.
      • I need the most recent information on federal expenditures on education.
  • 6. Currency
    • If information is online and currency is important, when was the information last updated?
    • Be aware that date information was created may be different from date it was put in a particular “container.”
  • 7. Original information : Galen’s writings on medicine. Created circa 160 to 207 AD. Container 1 : Manuscript book written in 1150. Container 2 : Printed book published in 1821. Container 3 : Web page created in 2002.
  • 8. Authority
    • Arguably the most important thing to consider when evaluating information.
    • Authority refers to who created the information and is responsible for its credibility.
  • 9. Authority
    • Personal Author
      • An individual of group of individuals acting as an author.
    • Corporate Author
      • A business, agency, organization, or other body acting as an author.
  • 10. Authority
    • Who is the author?
      • Author should be clearly identified.
    • Is the author an authority?
      • Does the author have the education, experience, or combination of the two to write authoritatively about the topic in question?
  • 11. Authority
    • Is the author affiliated with a reputable institution (university, agency, business, etc.)?
    • Authors sometimes exaggerate, lie, or hedge about their qualifications.
      • What does it mean when an author claims to be “a leading researcher” or “a noted authority”?
      • Does a Ph.D. in music qualify an author as an expert on water pollution?
  • 12. Publisher
    • The publisher is the person or group who makes public a piece of information.
    • Many types of publishers:
      • Commercial.
      • Academic.
      • Government agency.
      • Association.
  • 13. Publisher
    • As a rule, the more reputable the publisher, the more reliable the information.
    • Self-published information is notoriously unreliable.
      • Most Web pages are self-published.
  • 14. Funding
    • Follow the money.
    • Who put up the money to make the information public?
    • Is there a conflict of interest?
      • Tobacco company pays for “research” into the effects of smoking on health.
  • 15. Print Equivalent?
    • Is a piece of electronic information the exact equivalent of printed information?
      • If so, then both are equally credible.
    • Are there discrepancies—intentional or accidental—between “identical” electronic and print versions?
  • 16. Purpose
    • All information has some purpose, such as:
      • Direct sales.
      • Advertising.
      • Public relations.
      • Education.
      • Entertainment.
      • Advocating social, religious, or political agendas.
      • Authorial ego gratification.
      • Career advancement (including earning tenure).
  • 17. Purpose
    • Information may have more than one purpose.
      • Example: A Web site could be both educational and entertaining.
    • Does the purpose of the information reveal any conflicts of interest?
  • 18. Conflict of Interest?
    • Valerie’s Vitamin Villa offers many articles extolling the benefits of taking vitamins.
    • Valerie’s Vitamin Villa also sells vitamins online.
    • Because of this conflict of interest, information from articles found on Valerie’s Vitamin Villa should undergo extra scrutiny before it is accepted as credible.
  • 19. Intended Audience
    • The intended audience can tell you if the information is appropriate for your purpose.
    • Example: Sources of information on nutrition might be aimed at one of the following audiences:
      • Children.
      • General public.
      • Owners of health-food stores.
      • Scholarly researchers.
  • 20. Accuracy
    • Web standards for spelling and grammar are looser than for print.
    • However, information riddled with errors of spelling, grammar, punctuation, or fact should raise questions.
      • If source cannot correctly spell Prozac , can you trust it to provide accurate dosage information?
  • 21. Independent Confirmation
    • Does author accurately cite the specific sources used?
    • Can the same or similar information be verified by other sources?
      • Are these sources truly independent of each other?
    • If the same bad information appears in 100 sources, that does not make it good information.
  • 22. Coverage
    • In what depth does the source cover its topic?
    • Does it include extraneous information?
    • Does it exclude information that should be included?
  • 23. Final Thoughts on Evaluating Information
    • Maintain a healthy skepticism about all information.
    • Question the purpose behind every piece of information.
    • Don’t be fooled by cool. Great graphics, polished presentation, and glib language do not in themselves guarantee that the information being presented is good information.