Peer-reviewed articles are a category of academic research/literature that describes the process the article goes through before it is published.
For an article to be considered peer-reviewed, it is written by an expert researcher in a field and then vetted by a group of researchers also in that field before it is published in a journal. This process helps to ensure the research is high-quality and these articles are often seen as the gold-standard when looking for information.
The best place to find peer-reviewed research is to choose a database, then select the "peer-reviewed" box on the search page. Some good general use database options are:
Business:
Communications:
Health/Public Health:
Film/Television:
Psychology: