Scholarly articles(published in print and/or online scholarly journals) are reviewed by experts in a process known as peer review before they are published. They are written for other scholars or experts.
Here is a list of different types of scholarly articles.
original research (empirical) article
based on an experiment or study. This type of article will have a methodology section that tells how the experiment was set up and conducted, a results or discussion section, and usually a conclusion section. In psychology courses, you are often asked to find empirical articles. Empirical articles are original research articles.
review article (literature review or systematic review)
written to bring together and summarize the results/conclusions from multiple original research articles/studies. This types of article will not usually have a methodology section, and they generally have very extensive bibliographies.
written to contribute to the theoretical foundations of a field of study. In this type of article, an author will draw upon existing research to form a new theory or explore theories in new ways.
Other content you may find in scholarly journals:
book review
while written by scholars, book reviews in scholarly journals are meant to provide a summary of a newly published book. Book reviews can lead to the discovery of new sources to investigate.
editorial
while written by editors of scholarly journals, these articles are summaries of content included in a specific issue of a journal. Editorials can lead to the discovery of new sources to investigate.