What is peer review? Journals typically have other experts in the field review articles prior to publication. In a blind peer-review, reviewers know the author's name. In a double-blind peer-review, neither the author(s) nor the reviewers know the identities of the others. To find the level of peer-review of a particular journal, one usually needs to refer to the editorial statement of that journal.
To find peer-reviewed or referred journal articles, use limits in the databases, check the journal list in our Journals by Title list, or use the Ulrich's Web database to verify if a journal is peer-reviewed.