Scholarly journals contain articles written by, and directed toward, experts in a discipline. Articles in these journals:
Peer-reviewed journals contain articles:
Articles from scholarly journals published by the American Psychology Association. Full text.
Citations for biomedical research, including articles that cannot be found in PubMed Central. Some citations include links to full-text content.
Google Scholar is not always reliable, but it does provide a means for a "fishing expedition"--casting terms out there to see what is "caught" and possibly providing new terms to reiterate the search. A Google Scholar search can also direct a searcher to the right database for a more precise and well-conceived search.