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What is a peer reviewed source

Explainer4 min·Updated May 2024

Definition of a peer reviewed source

A peer reviewed source is an academic article or book that has been evaluated by a panel of independent experts in the same field before publication. These experts, or 'peers,' review the work for accuracy, validity, and original contribution to ensure it meets rigorous scholarly standards.

Understanding the peer review process

Peer review acts as a quality control filter for academic research. When a researcher completes a study, they submit it to a scholarly journal. The journal editor sends the manuscript to other experts in that specific field. These reviewers remain anonymous to prevent bias. They look for flaws in methodology, check that conclusions are supported by data, and ensure the writing is objective. If the paper does not meet these high standards, it is rejected or sent back for major revisions. This process is why peer reviewed sources are the gold standard for college essays.

Peer reviewed vs. popular sources

FeaturePeer Reviewed SourcePopular Source (Magazine/News)
GoalTo share original research or theoryTo inform or entertain the general public
AuthorsExperts, professors, or researchersJournalists or staff writers
AudienceOther scholars and studentsThe general public
ReviewerIndependent subject matter expertsInternal magazine or news editors
EvidenceExtensive citations and bibliographiesFew or no formal citations
LanguageTechnical and specialized jargonSimple, accessible language

Peer reviewed vs. popular source examples

Example
To understand the difference, look at how the same topic is covered in different publications:

**Peer Reviewed Source (The Journal of Clinical Psychology)**
* **Title:** A Longitudinal Analysis of Cognitive Behavioral Therapy on Adolescent Anxiety Disorders.
* **Characteristics:** Includes an abstract, a detailed 'Methods' section with statistical data, and five pages of references to other studies.

**Popular Source (Psychology Today Magazine)**
* **Title:** 5 Ways to Help Your Teen Manage Anxiety.
* **Characteristics:** Written in a conversational tone, includes colorful photos, offers quick tips, and does not cite specific data sets or academic studies.

How to find peer reviewed sources

The easiest way to find these sources is through your university library database. Most databases, such as EBSCOhost, ProQuest, or JSTOR, have a sidebar checkbox labeled 'Peer-Reviewed' or 'Scholarly.' Checking this box automatically filters out magazines, newspapers, and trade publications. You can also use Google Scholar, though you must manually verify if the journal listed uses a peer review process.

When to use peer reviewed sources

Always prioritize peer reviewed sources for your thesis statement and core arguments. Use popular sources only for current events, anecdotal examples, or to show how a topic is perceived by the general public. If your professor asks for 'scholarly' or 'refereed' sources, they are specifically requiring peer reviewed articles.

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