LibGuides: Research Process: 3a. Evaluate Sources

Evaluate Sources

Step 3a: When researching, you may be asked to use a variety of sources such as books, articles from newspapers, magazines, or journals, and websites. To ensure you are including only valid information in your research, evaluate your sources using the criteria below.

How do you know if you can trust the information you're locating? By learning to evaluate the resource you're wanting to use, you'll be better able to understand it and use it in your final project. You'll also be more aware of what items you shouldn't use as authoritative resources.

Criteria for Evaluating Sources

Take a look at one of your resources and scan the list below. Can you answer some basic questions about it? Some items are fairly easy to evaluate, but others are difficult. When in doubt, ask your librarian or instructor.

Criteria	Questions to Ask
Authority / Credibility Determining the author for a source is important in deciding whether information is credible. The author should show some evidence of being knowledgeable, reliable and truthful.	Who is the author (person, company, or organization)? Does the source provide any information that leads you to believe the author is an expert on the topic? Can you describe the author's background (experience, education, knowledge)? Does the author provide citations? Do you think they are reputable?
Accuracy The source should contain accurate and up-to-date information that can be verified by other sources.	Can facts or statistics be verified through another source? Based on your knowledge, does the information seem accurate? Does it match the information found in other sources? Are there spelling or grammatical errors?
Scope / Relevance It is important that the source meets the information needs and requirements of your research assignment.	Does the source cover your topic comprehensively or does it cover only one aspect? To what extent does the source answer your research question? Is the source considered popular or scholarly? Is the terminology and language used easy to understand?
Currency / Date Some written works are ageless (e.g., classic literature) while others (e.g., technological news) become outdated quickly. It is important to determine if currency is pertinent to your research.	When was the source written and published? Has the information been updated recently? Is currency pertinent to your research?
Objectivity / Bias / Reliability Every author has an opinion. Recognizing this is instrumental in determining if the information presented is objective or biased.	What is the purpose or motive for the source (educational, commercial, entertainment, promotional, etc.)? Who is the intended audience? Is the author pretending to be objective, but really trying to persuade, promote or sell something?
Style / Functionality Style and functionality may be of lesser concern. However, if the source is not well-organized, its value is diminished.	Is the source well-written and organized? To what extent is it professional looking? If it is a website, can you navigate around easily? If it is a website, are links broken?