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101: A brief guide to Undergraduate Library Research

A brief introduction to college-level research

What is a credible source?

Credible sources earn your trust by relying on evidence to support claims. You can trust that the ideas expressed are the author’s (or are attributed to the actual author) and the ideas are supported by evidence. The definition of a “credible source” may vary depending on the discipline and the purpose of the writing. If in doubt, ask your instructor.

Evaluating Sources for Credibility

The CRAAP Checklist

Knowing how to find relevant, reliable, and accurate information can help you create better research assignments. These same skills will help you make informed decisions about real world questions such as buying a car, evaluating financial aid options or deciding which graduate school is best for you. Use the criteria below to help you evaluate the information you find.

Currency: The timeliness of the information.

  • When was the information published or posted?
  • Has the information been revised or updated?
  • Is the information current or out-of date for your topic?
  • Are the links functional?

Relevance:The importance of the information for your needs.

  • Does the information relate to your topic or answer your question?
  • Who is the intended audience?
  • Is the information at an appropriate level (i.e., not too elementary or advanced for your needs)?
  • Have you looked at a variety of sources before determining this is one you will use?
  • Would you be comfortable using this source for a research paper?

Authority: The source of the information.

  • Who is the author/publisher/source/sponsor?
  • Are the author's credentials or organizational affiliations given?
  • What are the author's credentials or organizational affiliations?
  • What are the author's qualifications to write on the topic?
  • Is there contact information, such as a publisher or e-mail address?
  • Does the URL reveal anything about the author or source? examples: .com .edu .gov .org .net

Accuracy: The reliability, truthfulness, and correctness of the informational content.

  • Where does the information come from?
  • Is the information supported by evidence?
  • Has the information been reviewed or refereed?
  • Can you verify any of the information in another source or from personal knowledge?
  • Does the language or tone seem biased and free of emotion?
  • Are there spelling, grammar, or other typographical errors

Purpose: The reason the information exists.

  • What is the purpose of the information? to inform? teach? sell? entertain? persuade?
  • Do the authors/sponsors make their intentions or purpose clear?
  • Is the information fact? opinion? propaganda?
  • Does the point of view appear objective and impartial? Are there political, ideological, cultural, religious, institutional, or personal biases?

Adapted from  Evaluating Information – Applying the CRAAP Test, Meriam Library, California State University, Chico. http://www.csuchico.edu/lins/handouts/eval_websites.pdf

Try it out - Use the CRAAP checklist to analyze these two sites. Which is more credible? How can you tell?

Evaluate Your Sources: The SIFT Method

Try it out - Use the SIFT method to analyze these two sites. Which is more credible? How can you tell?

Types of Sources: primary, secondary, and tertiary

Not sure of the differences between primary, secondary, and tertiary sources? This guide provides definitions of each with examples.

What is a Primary Source?

Primary sources are the raw materials of history. They are the original documents/creative works which contain or demonstrate the firsthand knowledge or experience of the creator(s) of an event or creative work. Some examples of primary sources:

  • Artifacts (clothing, furniture, tools, buildings, paintings, artwork)
  • Experiments
  • First–person accounts (including newspaper accounts)
  • Government publications (statistics, court reports)
  • Historical documents including maps
  • Internet resources (especially digitized versions of historical documents)
  • Lab reports
  • Draft copies of manuscripts
  • Journals
  • Diaries
  • Ledgers
  • Correspondence (i.e. written or electronic letters, email)
  • Photographs
  • Observations/Field notes
  • Official government or corporate papers
  • Audio Recordings (e.g. radio programs, speeches, oral histories, music)
  • Film/Video/Digital Visual Recordings