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Fullerton College Library

How to Know What to Trust: Evaluating Information: Four Questions

How to Know What to Trust

decorative To effectively evaluate a claim meant to influence our thoughts, opinions, or behavior, take a critical thinking approach. One useful technique is called lateral reading, which involves looking for information outside of the original source to verify a claim. To practice lateral reading, ask the following four questions and conduct separate searches for each: 1) Who says? 2) How do they know? 3) Could they be wrong? 4) Is there another interpretation or explanation? By exploring each question in separate tabs and seeking answers from a variety of sources, you will better understand the claim to make informed decisions.

An overview of the four guiding questions is presented below. Click on the tabs above for additional resources. 

 

Four Guiding Questions

Investigate the Source (Website or Publication) and Author

 

Read Vertically: About Us & Author Bio

On the source page, look towards the top or bottom of the page for an About Us link. 
  • What is the group's mission or purpose?
  • Do articles go through an editorial and fact-checking process?
Scroll down the page, looking for an author bio.
  • Does the website or publication provide background information on the author? 
  • If so, what qualifies the author to write about the article's topic?
 

Read Laterally: Wikipedia & Other Sources

Open a new tab and search the source or author to see what other sites, such as Wikipedia, have to say about the source.
  • How to other sites describe this source or author?
  • How long has the group been around? Is it well established?
  • Are there any known biases or controversies that impact the trustworthiness of the source or author?
  • Is the site or author what they seemed to be?
  • Does their reputation make the source and author more or less trustworthy?

See the Video Tutorials tab for more on how to use Wikipedia to assess sources and how to investigate the authority of a source.

 

Identify Sources Used to Support the Claim

 

Look for Supporting Sources

  • Links: Click to make sure they work and go where they should.
  • Citations: Search the web for article titles.
  • Description of Source: Search the web using descriptive words from the text.
  • No Evidence: Search the web to independently verify the claim.
  • See the Video Tutorials tab for more on how to find the original reporting source.

 

Ask Yourself

  • Are the sources current enough for your needs?
  • Are cited/linked sources reliable?
  • If you are not familiar with the cited source, go back to the first question to investigate the source.
  • If you can't locate a cited source but would like to track it down, ask a librarian for assistance.

Verify Information Wasn't Manipulated or Made-up

 

Ctrl+F It

  • Open the referenced source in a new tab and use Ctrl+F to search the document for key terms in the claim.
  • Did the author quote or paraphrase the referenced source without changing the original meaning?

 

Read Laterally

  • Open a new tab. Can the claim to independently verified? In other words, can you find this same claim in different sources?
  • See the Video Tutorials tab for advanced claim checks.

 

Check for Errors in Reasoning

 

Common Errors

  • False Cause (correlation ≠ causation): Mistaking what is happening with why it is happening
  • Single Cause (oversimplification): Attributing a single cause when multiple causes are in play
  • Hasty Generalization (jumping to conclusions): Drawing conclusions on too small a sample size
  • See the Video Tutorials tab for more on bad or irrelevant evidence, errors in reasoning, misleading graphs, and reverse searching images.

Check Your Assumptions and Biases

 

Look for Additional and Disconfirming Information

  • Look for factors or perspectives that weren't considered by the author.
  • Challenge your confirmation bias by seeking disconfirming information. 
  • Does this additional information lead you to draw a different conclusion?
  • See the Check Your Bias tab for more information

Your FC Librarian

Evaluating Claims with Four Questions & Lateral Reading: Slides