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Library Resources for the USD - Sioux Falls: What are "Sources"?

This LibGuide is designed to help USD - SF students, faculty and staff locate and access library resources.

The CRAAP Test

Currency: The timeliness of the information.

Relevance: The importance of the information for your needs.

Authority: The source of the information.

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

Purpose: The reason the information exists.

Evaluating Source Credibility

Video Courtesy of NCSU Libraries

What are Scholarly Sources?

What is a scholarly source? 

Scholarly sources (also referred to as academic, peer-reviewed, or refereed sources) are written by experts in a particular field of study and serve to keep others, especially those in the field, current on the most recent research findings, and news. These resources will provide the most substantial and highest quality information for your research papers.

What is peer-review?

When a source has been peer-reviewed it has undergone the review and scrutiny of a review board of colleagues in the author's field. They evaluate this source as part of the body of research for a particular discipline and make recommendations regarding its publication in a journal, revisions prior to publication, or, in some cases, reject its publication.

Why use scholarly sources?

The authority and credibility evident in scholarly sources will improve the quality of your paper or research project. Use of scholarly sources is an expected in academic course work.

Using Google Scholar to find USD Library Resources

  • In Google Scholar, click on settings.
  • Click on Library Links.
  • In the search box enter USD University Libraries.
  • Click search. 
  • Check the box USD University Libraries- U. Get it! 

Now, you will have direct links into library resources from Google Scholar. 

Be sure to enter Google Scholar through the Libraries Database list. 

That way, you will not have to keep signing in. how to

Primary vs. Secondary Sources

Primary Sources are original records created at the time historical events occurred or well after events in the form of written or oral memoirs.  

Examples include:

  • Letters
  • Diaries
  • Journals
  • Newspapers
  • Speeches
  • Interviews/Oral History
  • Documents produced by government agencies
  • Photographs
  • Audio Recordings
  • Video recordings
  • Data or Datasets 
  • Works of Art, Objects, or Artifacts
  • A building (architecture) 

Secondary sources are documents written after an event has occurred, providing secondhand accounts of that event, person, or topic..

Examples include:

  • Journal and magazine articles
  • News reports
  • Encyclopedias
  • Textbooks
  • Books


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