What are some indicators of a peer-reviewed journal article?
Some good indicators to determine if you found a peer-reviewed journal article are:
Are all peer-reviewed journal articles empirical research?
Nope! There's many types of research published in peer-reviewed journals so you need to determine if it is empirical, or first hand research. Check the journal article's methodology section to see the data and types of data analysis used in the study.
What can I do if I have a question if I found a peer-reviewed journal article?
Contact your librarian or the library's research assistance service.