
URL for the original document is: http://www.science.widener.edu/~withers/evalout.htm
The Web as a Research Tool:
Evaluation Techniques
Presented by Jan Alexander and Marsha Tate, Reference
Librarians
Wolfgram Memorial Library
Widener University
Chester, PA
Topics Covered
- Need for Evaluation of Web Sources
- Review of the Five Traditional Print Evaluation Criteria
- Adapting the Five Traditional Print Evaluation Criteria to Web
Sources
- Additional Challenges Presented by Web Sources and How to Cope
with Them
- Applying Evaluation Techniques to Specific Types of Web
Resources
- Conclusion
1. Need for Evaluation of Web Sources
- Quality of sources varies tremendously
- Techniques needed to evaluate Web resources
- Some traditional print techniques still appropriate
- New techniques also needed
2. Review of the Five Traditional Print Evaluation
Criteria
- Criterion #1: Accuracy
- How reliable and free from error is the
information?
- Are there editors and fact checkers?
- Criterion #2: Authority
- What are the author's qualifications for writing
on this subject?
- How reputable is the publisher?
- Criterion #3: Objectivity
- Is the information presented with a minimum of
bias?
- To what extent is the information trying to sway the
opinion of the audience?
- Criterion #4: Currency
- Is the content of the work up-to-date?
- Is the publication date clearly labeled?
- Criterion #5: Coverage
- What topics are included in the work?
- Are the topics included explored in depth?
3. Adapting Five Traditional Print Evaluation Criteria to Web
Resources
- Criterion #1: Accuracy of Web Resources
- Almost anyone can publish on the Web
- Many Web resources not verified by editors and/or fact
checkers
- Web Standards to ensure accuracy yet to be fully
developed
- Criterion #2: Authority of Web Resources
- Often difficult to determine authorship of Web
Sources
- If author's name is listed, his/her qualifications
frequently absent
- Publisher responsibility often not indicated
- Criterion #3: Objectivity of Web Resources
- Goals/aims of persons or groups presenting
material often not clearly stated
- Web often functions as a "virtual soapbox"
- Criterion #4: Currency of Web Resources
- Dates not always included on Web pages
- If included, a date may have various meanings:
- Date information first written
- Date information placed on Web
- Date information last revised
- Criterion #5: Coverage of Web Resources
- Web coverage may differ from print coverage
- Often hard to determine extent of Web coverage
4. Additional Challenges Presented by Web Resources And How To
Cope With Them
- Marketing-Oriented Web Pages
- Challenge
- In print sources, usually clear distinction
between advertising and information
- On the Web, the distinction between advertising and
information can easily become blurred
- Coping Strategy
- Determine if advertising and informational
content are being supplied by the same person or
organization
- If so, advertising likely to bias informational
content
- "Infommercial" Web Pages
- Challenge
- Blending of Entertainment, Information, and
Advertising on Web Pages
- Coping Strategy
- Caveat Emptor: View these Web pages with the
same critical eye you would an infommercial
- Use of Hypertext Links
- 1. Challenge
- Quality of Web pages linked to original Web
page may vary
- 2. Coping Strategy
- Evaluate each Web page independently
- Software Requirements May Limit Access to Web Information
- Challenge
- Full access may require additional
software
- Browsers may alter the appearance of Web Pages
- Coping Strategy
- Be aware that software may limit how much
information you obtain and how the information appears on
your screen
- Web Pages Out of Context
- Challenge
- Search Engines can retrieve Web Pages out of
context
- May or may not be a way of determining source of
information
- 2. Coping Strategy
- Always try to return to the "home page" to
determine source of information
- Instability of Web Pages
- Challenge
- Web pages may move or disappear without
notice
- Coping Strategy
- Try to determine the stability of your
source
- Document source to the fullest extent possible
- Susceptibility of Web Pages to Alteration
- Challenge
- Web pages are susceptible to both accidental
and deliberate alteration
- Coping strategy
- Attempt to verify information using other sources
5. Applying Evaluation Techniques to Specific Types of Web
Resources
Step 1: Identify the Type of Web Page
- Entertainment
- Business/Marketing
- Reference/Informational
- News
- Advocacy
- Personal Page
Step 2: Use the Appropriate Checklist
Step 3: Based on the Checklist Criteria, Determine the Relative
Quality of the Web Page
- The more "yes" answers to questions indicates a higher quality
Web page
6. Conclusion: Remember!
The Web is only one source of information
- It can be very useful for researching certain topics
- It can be almost useless for other topics
- To research a topic thoroughly, use a variety of sources both
Web and non-Web
Web evaluation techniques are just beginning to be developed
Technology is outpacing ability to create standards and
guidelines
Establishing evaluation procedures will be an ongoing evolutionary
process
URL for the original document is: http://www.science.widener.edu/~withers/evalout.htm
Copyright Widener University, 1996
Date Mounted on Server: 24 September 1996
Last Revised: 28 October 1996
Comments: Marsha.A.Tate@widener.edu
or Janet.E.Alexander@widener.edu
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