Scholarly, Academic and Peer Reviewed all mean the same thing: the article is published because a team of professionals in that field approve it.
These articles have underwent a quality control check- so you can be sure they are reliable!
How do you know if an article is scholarly?
Contrary to scholarly articles, newspaper or popular magazine articles are written by journalists (not specialists in any field except journalism).
They are reviewed only by the magazine/newspaper editors (also not specialists in any field except editing).
So, the information may not be accurate. Double check by finding another source with the same information.
Web sites can give a mixture of information, from scholarly to ... less accurate.
Always check the following: