"Information resources reflect their creators’ expertise and credibility, and are evaluated based on the information need and the context in which the information will be used. Authority is constructed in that various communities may recognize different types of authority. It is contextual in that the information need may help to determine the level of authority required." ACRL Framework for Information Literacy
Information can come from a variety of sources. Knowing the author's background, publication process, and audience area few of the ways to evaluation your source.
A popular method to evaluating sources is the CRAAP test:
*Image from: https://blogs.canterbury.ac.uk/library/roll-up-roll-up-free-academic-sources/
Specific characteristics help identify if a source is scholarly or popular.
*Image from: https://dornsife.usc.edu/writingcenter/handouts/
The Peer Review Process is one process of publication where authors submit their work for review by members of that profession. These peers then determine if this work is suitable for publication.
*Image from: https://authorservices.wiley.com/Reviewers/journal-reviewers/what-is-peer-review/the-peer-review-process.html