• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
Evaluating information on the web
 

Evaluating information on the web

on

  • 2,847 views

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

Statistics

Views

Total Views
2,847
Views on SlideShare
2,844
Embed Views
3

Actions

Likes
0
Downloads
34
Comments
0

1 Embed 3

http://alfacert.cliro.unibo.it 3

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

Evaluating information on the web Evaluating information on the web Presentation Transcript

  • Evaluating information Searching for quality on the Web
  • 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
  • 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.
  • How do I find information?
    • Places to search for information
      • Search engines
      • Directories
      • Meta-search tools
  • 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
    • AllTheWeb
    • AltaVista
    • Ask.com
    • Google
    • ChaCha
    • Quintura
    • Hakia
    Examples of search engines
  • 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
  • Examples of directories
    • Yahoo
    • Open Directory Project
    • World Wide Web Virtual Library
    • Librarian’s Internet Index
    • About.com
  • Meta-search engines
    • Search several search engines simultaneously
    • Good way to keep up with new search engines
    • Keep your search simple
  • Examples of meta-search tools
    • Ixquick
    • Metacrawler
    • Mamma
    • Ask.com
    • Dogpile
    • Clusty
  • 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
  • Common criteria elements
    • Authority
    • Content
    • Currency
    • Audience
    • Accuracy
    • Design
    • Other
      • Affiliation
      • Objectivity
      • Multiple intelligences
      • Time
  • 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.
  • 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?
  • 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?
  • 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.
  • 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?
  • 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?
  • Other sources: Cornell
    • Five criteria for evaluating Web pages
      • Accuracy
      • Authority
      • Currency
      • Objectivity
      • Coverage
  • 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
  • Class rubric
    • Basic information
    Date reviewed: Reviewer email: Browser(s) used: Date last updated: Site URL: http:// Title of site/page:
  • Criteria and levels
    • Each criteria element has 4 levels
      • Authority
      • Affiliation
      • Purpose
      • Objectivity
      • Audience
      • Currency
      • Content
      • Accuracy
      • Web Site Design
      • Multiple intelligences
  • 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
  • On your marks…
    • Prepared by
    • Iván E Calimano, Ph.D. Assistant Professor Graduate Studies Center Interamerican University San Germán, PR
    • [email_address]