There are several ways in which you can measure the quality of a journal article or journal. This includes:
You may wish to look at the following site to see the components of a scholarly article.
Anatomy of a Scholarly Article An interactive guide from NCSU libraries. Shared under the Creative Commons Attribution - Noncommercial - Share Alike 3.0 United States License.
A research tool that will assist you to design research projects and understand the methods behind them. Browse or search across books, dictionaries, encyclopedias, journal articles and videos.