A peer-reviewed article is one that is published in a journal that requires that each article submitted for publication be judged by an independent panel of experts or scholarly/scientific peers to determine that the research methodology is sound, prior to publication. The peer review process ensures the quality of published scholarship.
After the paper has been reviewed, it may be accepted, sent back for further editing, or rejected.
Your professor may ask you to find items that are:
All of these terms may be used to describe high-quality research. It takes a while to do the peer-review process; articles may not be published for one or two years after they are written.
"For an activity to be designated as scholarship, it should manifest at least three key characteristics: it should be public, susceptible to critical review and evaluation,and accessible for exchange and use by other members of one's scholarly community.
We thus observe with respect to all forms of scholarship that they are acts of mind or spirit that have been made public in some manner, have been subjected to peer review by members of one's intellectual orprofessional community, and can be cited, refuted, built-upon, and shared among members of that community. Scholarship properly communicated and critiqued serves as the building block for knowledge growth in a field."*
*Source: Shulman, Lee. The Carnegie Teaching Academy. (1998). The Pew Scholars National Fellowship Program (pp 9-10). Menlo Park, CA: The Carnegie Foundation for the Advancement of Teaching.
From the Evaluating Sources Guide at the University of Washington, Bothell Campus Library.