When looking at a source of information and writing a critique, you will want to think about several factors to help you determine whether it is scientifically credible:
- Author: Who is the author of the information? This can be a person (what are their credentials?) or an agency (such as the National Institutes of Health). Do they have knowledge about this area of science? If they are journalists, did they do their homework?
- Date: When was the information written or last updated? Is there newer information?
- References: Does the piece reference the scientific literature or other reliable sources? Information presented without citation of the literature is not scholarly and not credible. But then, check the sources they cite? Have they left out important articles? Do they reference a wide range of researchers or only the same researchers over and over?
- Audience: Who is the audience for this piece of information? If the audience is the patient or layperson, the information might not go deep into the science. That's OK, but sometimes information can be simplified so much that it becomes misleading or inaccurate, so check for that.
- Funding: What is the funding source of the site? Advertising should be clearly distinguishable from content. Look for evidence of bias if someone is selling products based on the information presented.