If you find an article in the library's OneSearch, it should be from a reputable journal. However, if you are searching on Google Scholar or a similar platform, you might run across a source you aren't familiar with you might be uncertain whether or not it is a legitimate source to cite to. You can always ask a librarian for assistance, but you can also ask the following questions to evaluate your source:
•Check the publisher (Academic press? Commercial publisher?)
•Check the editorial board
•Does the journal publish in a sufficiently narrow area? (e.g. not The Experiment Journal)
•Does the journal publish outside its area of expertise? (e.g. is a science journal publishing political articles)
•Is the article peer-reviewed?
•Is it cited by reputable scholars?
•Check journal rankings and citation studies