Evaluating information on the web

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A basic presentation for evaluating resources on the web and what are search engines, directories and meta search engines

A basic presentation for evaluating resources on the web and what are search engines, directories and meta search engines

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  • 1. Evaluating information Searching for quality on the Web
  • 2. Information need
    • Need to know more about …
    • Want to use information on the web for class
    • Just curious about …
    • How I can find information on the web?
    • Other
  • 3. The Web
    • Largest growing part of the Internet
    • Information of all sorts
      • Statistical information
      • Images, video, sound
      • Factual information
      • Company information
      • Full text (articles, books)
      • Popular culture
      • Etc.
  • 4. How do I find information?
    • Places to search for information
      • Search engines
      • Directories
      • Meta-search tools
  • 5. Search engines
    • Attempt to index the web
    • Require search techniques for good results
    • Often used for multifaceted or obscure subjects
    • Large amount of information from different perspectives
    • Updated regularly
  • 6.
    • AllTheWeb
    • AltaVista
    • Ask.com
    • Google
    • ChaCha
    • Quintura
    • Hakia
    Examples of search engines
  • 7. Directories
    • Topic lists of selected resources
      • Hierarchically arranged
    • Resources evaluated carefully
    • Browsed or searched by keyword
    • Contain links to specialized databases
    • To get an overview of a topic
    • Facts such as population statistics
  • 8. Examples of directories
    • Yahoo
    • Open Directory Project
    • World Wide Web Virtual Library
    • Librarian’s Internet Index
    • About.com
  • 9. Meta-search engines
    • Search several search engines simultaneously
    • Good way to keep up with new search engines
    • Keep your search simple
  • 10. Examples of meta-search tools
    • Ixquick
    • Metacrawler
    • Mamma
    • Ask.com
    • Dogpile
    • Clusty
  • 11. Evaluating information
    • Once you select the pages and sites you need to evaluate the information
    • Information quality
    • Intuition and infer quality by clues
    • Prepare a rubric
    • Match your information with your objective
    • Read about the criteria elements
  • 12. Common criteria elements
    • Authority
    • Content
    • Currency
    • Audience
    • Accuracy
    • Design
    • Other
      • Affiliation
      • Objectivity
      • Multiple intelligences
      • Time
  • 13. Authority
    • Authority
      • Who is responsible for the site?
      • Are the author and the author's status clearly indicated?
      • Is it a commercial, personal, governmental, or academic site?
      • The URL can tell you about the nature of the web site.
        • Personal pages often contain the name of the web site's owner, or a description like users.
        • The domain name gives an indication of the web site's origin.
  • 14. Content
    • Content
      • What is the purpose of the site?
      • Is the text of the site well-written?
      • Is the information of the site well-documented and accurate?
      • Does the site offer anything unique, or is it just more of the same?
  • 15. Design
    • Design
      • Is the site well-designed? Did the top page contain all the information you needed or could it easily be retrieved from another page of the site?
      • Are there any spelling or grammatical errors?
      • Do all the hypertext links work?
      • Are the graphics on the site page clear and useful, or do they just distract your attention?
  • 16. Value
    • Value
      • Did you learn anything?
      • Was the page worth visiting?
      • Would you include the site in your bookmark list?
      • How many other sites link to this web site? Using Google (Advanced search) you can find out. Choose Page-specific search and fill in the URL. AltaVista also offers this option. Fill in Link: followed by the URL.
  • 17. Time
    • Time
      • Does the material have a limited period of validity?
      • Is there an indication of the latest update of the page?
      • Is the page obsolete?
  • 18. Other sources: Berkeley
    • Evaluating Web Pages : Techniques to Apply & Questions to Ask
      • What can the URL tell you?
      • Who wrote the page? Is he, she, or the authoring institution a qualified authority?
      • Is it dated? Current, timely?
      • Is information cited authentic?
      • Does the page have overall integrity and reliability as a source?
      • What's the bias?
      • Could the page or site be ironic, like a satire or a spoof?
      • If you have questions or reservations, how can you satisfy them?
  • 19. Other sources: Cornell
    • Five criteria for evaluating Web pages
      • Accuracy
      • Authority
      • Currency
      • Objectivity
      • Coverage
  • 20. John Hopkins University
    • Evaluating Information Found on the Internet
      • Authorship
      • Publishing body
      • Point of view or bias
      • Referral to other sources
      • Verifiability
      • Currency
      • How to distinguish propaganda, misinformation and disinformation
      • The mechanics of determining authorship, publishing body, and currency on the Internet
  • 21. Class rubric
    • Basic information
    Date reviewed: Reviewer email: Browser(s) used: Date last updated: Site URL: http:// Title of site/page:
  • 22. Criteria and levels
    • Each criteria element has 4 levels
      • Authority
      • Affiliation
      • Purpose
      • Objectivity
      • Audience
      • Currency
      • Content
      • Accuracy
      • Web Site Design
      • Multiple intelligences
  • 23. Writing your evaluation
    • After filling out the rubric, write a review in narrative form
    • Point out the positive aspects as well as the negatives
    • Conclude your review with a recommendation for grade, curricular area, and possible lessons
  • 24. On your marks…
    • Prepared by
    • Iván E Calimano, Ph.D. Assistant Professor Graduate Studies Center Interamerican University San Germán, PR
    • [email_address]