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Why should we check the
accuracy of information on a web page?
The accuracy of factual information
can tell you something about the care the author took in preparing
the document and can provide clues to possible bias in the
perspective represented in the document. Most web pages are not
reviewed or edited. Anyone can post just about anything they want
on the Internet. A second grader can claim to be a nobel prize
winner. A Russian professor can be mistaken for an American child
due to lack of familiarity with the English language. It is
important to check the facts and not rely on first impressions.
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How
can you check the accuracy of information on a web page?
Cross check factual data with other
documents on the web by searching for other pages containing
information about the facts. This is where it is important to have
at least three sources that agree on the same data point. For
example, the distance from the earth to the sun is 93 million
miles, fluctuating up to 3 million miles due to its elliptical
orbit. Some resources will just say 90 million miles, some 93
million miles and stop there. Until you have three sources that
agree on a number, you don't really know for sure. This is called
triangulation of data.
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Spelling Counts:
Even checking spelling and grammar can sometimes provide a clue about the
care taken in creating a document. But remember, British spelling and
phrasing are also acceptable.
Ask Questions: A good way
to check factual data is by asking probing questions. As you practice this
will become second nature; you will find yourself asking these questions
automatically upon entering any web site.
- What claims is the author making?
- What evidence does the author give to
support those claims?
- What evidence do I find elsewhere to
support those claims?
- What evidence do I find elsewhere to
refute those claims?
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Let's try it!
Your school web site claims Montana is famous for its red
raspberries. Using the following three web sites (to save you
time), check the accuracy of your school web site's claim. (If you
have more time, search the Internet for other sites that support
or refute this claim.)
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Authored by Lora K. Kaisler 2003
Permission granted: 
©Copyright 2002-2005 Illinois Mathematics and Science Academy
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