The best way to determine if your article is peer reviewed, is to make sure that the journal it is published in is peer reviewed, or "refereed." Ulrich's is a tool that provides extensive information about scholarly journals and publications, including whether the journal is peer reviewed. Search the title of the journal, (NOT the name of the article) in Ulrich's to find out if it is refereed.
McMaster University Library. (2015). Boolean cheat sheet (infographic). Retrieved from: https://library.mcmaster.ca/research/how-library-stuff-works.