There are many different types of articles including trade publication, newspaper, magazine, and scholarly (a.k.a. academic or peer-reviewed), which is the type you will most commonly use need for research assignments. Before the internet, all journals were printed; however, today most journals, including all of those in the NVC Library, are found online in databases. The library subscribes to dozens of article databases, both general and subject-based, which you can access for free by logging in with your student credentials.
Psychology-Specific
Multi-disciplinary Databases
The following video from Lincoln Memorial University Libraries describes the difference between scholarly and popular sources.
This video from the Quinebaug Valley Community College Library goes over the "Anatomy of a Scholarly Article" tool from North Carolina State University Libraries.