Scholarly journalsare published by scholars--people who have the highest college degree in their field--for other scholars to read. Before the article is published, it undergoes a process of peer-review, during which *other* scholar specialists (the author's peers) review the article and make suggestions for improvement. It's a strenuous process, so when something is published in a peer-reviewed, scholarly journal, it is considered by college professors to be extremely reliable. Watch this short video that describes the peer-review process.
Here are some clues/characteristics of peer-reviewed articles...
They are very long in page number, often 5-40 pages
They have a long list of citations or references at the end of the paper.
They only include charts or graphs--no colorful advertisements or photographs.
They have a DOI number (digital object identifier) assigned to them
They have section headings like...
Introduction [Strategic reading tip:Read this sectionto start!]
Conclusion[Strategic reading tip:Read this sectionto start!]