Skip to Main Content
University of Phoenix logo
University Library

Evaluate Sources

Why should I evaluate my sources?

Finding information is easier than ever; just Google it, right? But before you begin citing, it's essential to examine your sources more closely.

Evaluating sources helps you build strong, credible arguments. Even library materials should be checked to make sure they're the right fit for your work. One key part of this is spotting bias.

What is bias?

Bias is anything that skews information toward a particular viewpoint. You'll often find it in opinion pieces, like newspaper editorials. These can be useful for understanding perspectives, but they're not great for citing as facts. Bias can also manifest in research through the collection, interpretation, or even the researcher's assumptions of the data.

Recognizing bias helps you determine whether a source is trustworthy and how to utilize it effectively.

How do I evaluate sources?

What is the CRAAP method?

The CRAAP method is a quick and easy way to check if a source is trustworthy. It stands for currency, relevance, accuracy, authority, and purpose, which are five things to consider when deciding whether to use a source in your research.

CURRENCY: Is the information up to date?

  • When was it published or last updated?
  • Has anything changed since then, and why?
  • Do you need the most current info, or are older sources okay?
  • Are the links still working?

RELEVANCE: Does it fit your needs?

  • Does it answer your question?
  • Who's it written for: experts, students, the general public?
  • Is it at the right level, not too basic or too advanced?
  • Have you compared it with other sources?
  • Would you feel confident citing it?

AUTHORITY: Who's behind it?

  • Who's the author or publisher?
  • What are their credentials or affiliations?
  • Are they qualified to write on this topic?
  • Is there contact info?
  • Does the URL tell you anything (like .edu, .gov, or .com)?

ACCURACY: Can you trust it?

  • Where does it come from: a journal, blog, or news site?
  • Does evidence back it? Can you trace the sources?
  • Has it been peer-reviewed?
  • Can you verify the info elsewhere?
  • Is the tone neutral, or does it feel emotional or biased?
  • Are there spelling or grammar mistakes?

PURPOSE: Why does it exist?

  • What's the tone: informative, persuasive, or emotional?
  • Is the goal to inform, teach, sell, entertain, or persuade?
  • Are the author's intentions clear?
  • Is it fact, opinion, or propaganda?
  • Does it seem objective, or is there a clear bias?

What is the SIFT method?

Thinking of using a website in your research? Web sources can be excellent, but before you cite, ask yourself a few extra questions about the website using the SIFT method. The SIFT method is a strategy developed by digital literacy expert Mike Caulfield to evaluate online content for reliability and credibility. It stands for stop, investigate the source, find better coverage, and trace claims, quotes, and media to the original context.

STOP

This step is the simplest and serves as a reminder to consider the information before sharing or using it critically.

Ask questions like:

  • Do you know the website or source of information?
  • What is the reputation of the claim and the website?
  • What is your purpose?

Use techniques like:

  • Proceed to the next step to gain a sense of what you are reading if you are unfamiliar with the source.
  • Check that the source is reputable and is sufficient for your purpose.
  • Understand that verifying a claim within the article means proceeding to subsequent steps of the SIFT method.

INVESTIGATE the source.

Knowing the expertise and agenda of the source is critical to your interpretation of what they say.

Ask questions like:

  • Who wrote it? Who published it?
  • When was it published?
  • Is it peer-reviewed or under editorial oversight?
  • What is their mission? Do they have vested interests? Would their assessment be biased?

Use techniques like:

  • Search Wikipedia or Google to check the credibility and trustworthiness of the source.
  • Conduct lateral reading to check what other websites are publishing about the claims and the people behind them.
  • Check the credibility and safety of links used on a site.

FIND better coverage.

If you don't care about the source but want to verify the claim, you will want to research what other coverage is available on the same claim. For example, suppose the Diabetes Foundation claims that diabetes is rising in the United States. In that case, you will want to find a more reliable source or scan multiple sources to determine if there is consensus on this claim.

Ask questions like:

  • Can you find trusted sources that are reporting on the claim?
  • Do all the sources seem to agree on the claim?
  • Is there controversy around it, with different sources making conflicting arguments?

Use techniques like:

  • Search the library databases to find the claim in other trusted sources.
  • Use fact-checking websites like FactCheck.org or Snopes.com, which may have already evaluated the claims.

TRACE claims, quotes, and media to the original context.

Much of what we find on the internet lacks context. Tracing the claims back to their source can provide that context and provide insight into whether the information is accurate.

Ask questions like:

  • Are you reading a summary or interpretation of the information, or is this an original account?
  • Was the claim, quote, or media fairly represented?
  • Does the extracted information support the original claims in the research?
  • Is information being cherry-picked to support an agenda or a bias?
  • Is the information being taken out of context?

Use techniques like:

  • Follow links to check claims.
  • Find and read sources listed in a bibliography.

Like this guide or have feedback on it? Let us know!

Ask Us!

Have a question or need help?

Is the article peer-reviewed?

If an article is from a peer-reviewed journal, that's a good indication that it has a high level of accuracy and authority. Check out our guide on locating peer-reviewed materials:

Parts of a Research Article