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Evaluating Internet Based Information. What is the primary purpose of the site?. (will you use this site / info?) Is it ... Advocacy or Propaganda (promoting an opinion) Commercial (is it trying to sell you something?) Reference or Information (is it instructional?).
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What is the primary purpose of the site? (will you use this site / info?) • Is it ... • Advocacy or Propaganda (promoting an opinion) • Commercial (is it trying to sell you something?) • Reference or Information (is it instructional?)
Critique internet based information for: • 1 Author information - who wrote this? • 2 Site / publisher information - who publishes or owns the site? • 3 Currency - when was the page written? • 4 Accuracy - is the information reliable? • 5 Bias - why was this page written?
1 Author information (who wrote the page?) • Title / position? Credentials? • Does it provide contact information? • Is the author quoted by other sources?
2 Site information (who owns/publishes the site?) • Does the site have authority for its claims? • Does it link to an organisational affiliation? (Look for a header or footer identifying the sponsor or affiliation of the site). • Does it provide contact information? • The URL can provide source information. Check the domain, e.g: .edu or .com or .ac or .gov or .org or .net • Do other reputable sites link to this site?
3 Currency (when was the page written?) •Is the information up-to-date enough for your purpose? • Is the page dated? When was it last updated? • Are the links within it current or expired?
4 Accuracy (is the information reliable?)• Is the information factual, detailed, exact and comprehensive? • Can the information be verified in other sources and / or are there links to supporting evidence? • Is it well designed and without spelling or grammatical errors?
5 Bias / Purpose (why was this page written?) • Is the information balanced and objective? Is the language used emotive, or designed to sway opinion? • Who is the intended audience? (academics, potential customers?) Is there advertising on the page? • Does the author have any connection to an organisation or institution that may influence their treatment of the topic? Souce: http://www.library.otago.ac.nz/robertson/pdf/Google%20search%20tips.pdf University of Otago. Accessed (27/6/11)
Journal Impact Factor (IF) • Used as a proxy for the relative importance of a journal within its field • It is a measure reflecting the average number of citations to recent articles published in a journal • Calculated yearly for those journals that are indexed in Thomson Reuters Journal Citation Reports. Calculation Method 2008 impact factor = A/B. Where A= the number of times articles published in 2006 and 2007 were cited by indexed journals during 2008. And B= the total number of citable items* published by that journal in 2006 and 2007. Source: http://en.wikipedia.org/wiki/Impact_factor (Accessed 19/6/12) *Citable items are usually articles, reviews, proceedings, or notes; not editorials or Letters-to-the-Editor.)
Example IFs • http://en.wikipedia.org/wiki/Impact_factor • http://www.sciencegateway.org/rank/index.html • In NZ http://sciencewatch.com/dr/sci/11/apr17-11_1/ Rubbish? http://www.elsevier.com/wps/find/journaldescription.cws_home/623042/description#description
Random & Irrelevant… • 7/10 statistics are made up • 80% of people think that they are above average drivers