Research papers will often require you to use a variety of different types of sources. Once you have found sources on your topic, it's important to understand the types of information a sources provides to you. Each of your sources must help you address/answer your research question in some way. A general way to categorize these types of information is by considering if a source provides data you can analyze, arguments you can engage with, or background information to contextualize your topic.
When considering the relevancy of a source, there are several things to ask yourself:
There are several ways to identify a scholarly source.
1. Use a database
Databases have tools that can help you narrow results to scholarly and/or peer review
2. Google the source/publication title
If you Google the source/publication title and go to their webpage, look for Journal Information or About This Journal,
3. Check a directory - Ulrich’s Periodicals Directory
Ulrich's is a database that has information on every published journal. To check a publication title, search for its title and look for the icon above. That signifies it is Refereed, AKA peer -reviewed.