Evaluate by understanding stakeholders
Unfortunately there is no easy checklist to consult to see if a source is credible or reliable. As with all information resources, the usefulness of the information may depend on what was needed in the first place.
Consider asking yourself some of these questions when evaluating a source:
- Is the author clearly identified? What are his or her credentials for writing on this topic?
- Is the author affiliated with an organization? What is the reputation of that organization?
- Is there a link back to the organization's page or some other way to contact the organization and/or verify its credibility? (address, phone number, e-mail address?)
- For websites: who publishes and/or is responsible for the website itself? Who has registered the URL?
Purpose & Audience
- Are the purpose and objectives of the page clear?
- Is it geared to a particular audience, or level of expertise, or geographic region, or period of time?
- Is the primary purpose to provide information? to sell a product? to make a political point? to have fun? to parody a person or organization or idea?
- Is it a comprehensive resource or does it focus on a narrow range of information? Is it clear about this focus?
- If it is an information database, are the dates of coverage clear and appropriate to your needs? Is it easy to search? Does it present information in a usable format?
- Is the page part of an edited or peer-reviewed publication?
- Does the content of the page convey the amount, depth, and significance of the evidence being presented? Are the arguments persuasive?
- Can factual information be verified through footnotes or bibliographies to other credible sources?
- Did you find this source using an internet search engine such as Google or Yahoo? They neither select the best pages nor filter out questionable ones, so you need to evaluate the choices carefully.
- Based on what you already know about the subject (or have checked from other sources), does this information seem credible?
- Are there obvious typos or misspelled words or other signs of sloppiness?
- Is it clear when the information was published and when was it last updated??
- When was the research conducted?
- Is this the most recent version?
- For websites, are the pages current?
- If there are links to other websites, are they current?
Integrity of the Data
- Is the source of any factual information clearly stated?
- Are the source, scope and date of any statistics clearly labeled?
- Is it clear whether or not the information as been excerpted from a larger piece?
- Is there a way to tell if this is the most recent version of a particular piece?
- Does the author rely on photographic images to make a point? If so, be aware that digital images can be easily manipulated.
Objectivity, Bias or Point of View
- Does the page display a particular bias or perspective? Is it clear and forthcoming about its view of the subject? Does it use inflammatory or provocative language?
- If the page contains advertising, are the ads clearly distinguishable from the content?
- Is any conflict of interest discernable between content and advertising?
Adapted from Hammett, P. (1999). Teaching Tools for Evaluating World Wide Web Resources. Teaching Sociology, 27(1), 31-37. http://www.jstor.org/stable/1319243
Used with permission, from http://libguides.sonoma.edu/researchology
Thanks to Felicia Palsson.
Other Guides about Evalutating Sources
Tips for Evaluating All Information Sources
When using a book, article, report, or website for your research, it is important to gauge how reliable the source is. Consider the following when looking at any information source:
- Who is the author?
- When was the source published?
- Who is the intended audience?
- Is the content objective or does it have a bias?
Is it scholarly?
It can be a tough job to discern whether an information source is accurate or good research, which is one reason why your instructors and librarians require or encourage you to look at scholarly (academic) sources.
The main purpose of scholarly publications is to report on original research to make the information available to the rest of the scholarly world. In other words, their audience is other scholars, researchers, and people in academia: including YOU.
Here are some tips to getting your hands on scholarly information:
- Look for articles published in scholarly journals
- Search for articles using library databases
- Use websites that focus on scholarly resources (e.g. Google Scholar)
- Look at cited reference lists and bibliographies found at the end of research articles and books
Evaluating Wikipedia Articles
"In a nutshell: You should not use Wikipedia by itself for primary research (unless you are writing a paper about Wikipedia)."
--from Wikipedia article: Researching with Wikipedia