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CRAAP Test for the Web
The quality of the information you find on the Web varies tremendously so it is always a good idea to check the information against another source. As with all information resources, whether in print or on the Internet, you evaluate its quality based on the following criteria:
Currency (How old is the information and is it current enough to use in your research?)
Relevance (Does the site meet your needs in terms of depth of information and the level of understanding you're looking for - too elementary/too complex?)
Authority (Who is publishing this information? Is the author an expert? Is the organization trustworthy? Hint: research the author/publisher/organization)
Accuracy (Where does this information come from? Are there references so you can check their sources? Has the information been evaluated by someone?)
Purpose (Why does this site exist? Is it's goal to make money with ads? Is the site attempting to sell you a specific product? Is this a sponsored post?)
Visit this site for more information: http://j.mp/craaptest
Finding Web Information
Searching for information on the web efficiently requires developing a search strategy. Is the information sought very specific? If so, a search engine is the best search tool to use with keywords to describe the exact information need. Unsure or looking for more general information on a topic? Start with a subject directory and search broad topics. Many specialized databases and search tools are also available on the web.
Statistics on the Web
- Calculating Sample Size for Different Study Designs in Medical Research
Involves lots of equations, but gives you an idea of the issues related to sample size.
- Understanding Statistical Power - sample size
This is a useful article for simplifying a central concept for evaluating validity of sample size in research literature.
- CDC - Centers for Disease Control and Prevention
A very well organized website for starting research and for finding health statistics. Extensive information about health and disease from the US Department of Health and Human Services.
US National Library of Medicine website providing health information to the general public
- US FDA Drug Information
Food and Drug Administration website of information on drugs for humans, such as label information and FDA approval history. Look for the Drugs@FDA search link, as well as links for healthcare professionals and consumers, and the Drug Information Pathfinder.
- National Institutes of Health (NIH)
Website of the Federal government agency charged with being the "steward of medical and behavioral research for the Nation." Site provides consumer health information, information on clinical trials, and an array of health and research-related information
- WWW Epidemiology Virtual Library
Website from UC San Francisco's Dept. of Epidemiology and Biostatistics. Lists government agencies keeping epidemiological data from all over the world.
Guidelines and Other Health Science Resources
- US FDA Drug Information Food and Drug Administration website of information on drugs for humans, such as label information and FDA approval history. Look for the Drugs@FDA search link, as well as links for healthcare professionals and consumers, and the Drug Information Pathfinder.
- National Guideline Clearinghouse
U.S. Department of Health & Human Services database of evidence-based clinical practice guidelines.
National Library of Medicine - National Institutes of Health launching point for health sciences information, from peer-reviewed literature to clinical trials. Be sure to look at the quick start guide, information on finding the full text of articles, and the tutorials. Also check out the citation matchers, useful if you have incomplete information about an article.
National Library of Medicine online database of toxicology information
- Merck Manual of Diagnosis and Therapy - Online
Online version, with features not available in the print version, and "continuously updated to ensure that the information is as up-to-date as possible."
Library & Learning Resources, City College of San Francisco
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