Carnegie Mellon Libraries:





Why is this important?
  • Anyone can publish on the web.

  • Your college work should be based on reliable sources written by experts.

  • You need to be able to cite the sources for your work.


How to evaluate it

Look for author's name, title, affiliation, and contact information.

Read the "about" section of the site.

Look for trusted web sites such as:

Academic institutions (e.g. McGill University)
Government (e.g. U.S. Department of Education)
Professional associations (e.g. American Psychological Association)
Research centers (e.g. National Institutes of Health)
Print publishers (e.g. Sage)
Cultural institutions (e.g. British Museum)

Look for domains:

.edu usually has academic content, but watch out for students' personal pages.
.gov is a good source of statistical, health, scientific, and other information.
.com means the site is commercially sponsored, and the information is suspect. Must meet other criteria to be used for coursework.
.org could be a cultural institution, church, political party, or interest group. Apply all evaluative criteria.

Look for positive reviews, awards, or citations for the site.

Follow web guides selected by librarians or other experts.


Examples

1. American West

Who is the author of this essay?

Where does he teach?

Go back to the table of contents and look at the list of contributors.

What other evidence of scholarship do you find in this essay?


2. Artist William Rimmer

Several qualities vouch for the authority of this essay:

It is published in an established scholarly journal.

An author biography is provided.

It includes notes and references.


3. Greenhouse Effect

This is an example of a personal page hosted on a computer at Penn State University.

The name of the author, Alistair B. Fraser, is a bit hard to find. It’s tilted to the right of the square at the top of the page.

To find out who Alistair B. Fraser is, shorten the URL to http://www.ems.psu.edu/%7Efraser

This tells you that the author is a professor of meteorology, a good authority.



4. Herb Simon

This piece is authoritative.

It’s published in a leading science journal.

Information about the author is available.

Did the author know Herb Simon personally?


5. Mary Queen of Scots

Who is the author of this biography?

What are her credentials?

Is she an expert on Tudor history?

Is she a good authority on the subject?

If you’re unsure, apply other evaluation criteria (accuracy, objectivity, and coverage).


6. Tourette Syndrome

Who are the authors of this article?

What are their credentials?

What organization are they associated with?

Is contact information provided for this organization?





 

 


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  January 25, 2006 -- http://www.library.cmu.edu/Services/Tutorials/CSW/authority.html
  Jean Alexander, Head of Hunt Reference, jeana@andrew.cmu.edu
  © 2006 Carnegie Mellon Libraries