I especially recommend SPORTDiscus, but I'd also use Google Scholar and Library Search from the library main page.
Tip: Click on Format: Online under Availability to access full-text articles and other content after the Library Search.
Peer-reviewed articles:
What are peer-reviewed articles? How to find them and exclude non-peer-reviewed stuff? How to tell if what you find is peer-reviewed?
Peer-reviewed articles are one thing. But how could you be certain a source was "reputable"?
Tip: In the Library Search results page, click on Peer-Reviewed under Availability to see the peer-reviewed articles.
Other concerns: citing correctly, managing what you find. See App State Writing Center for help.
Follow Dr. Cline's guidance first, but also see the App State Writing Center's advice
Consider as you define your topic focusing on a vulnerable subpopulation, instead of only the entire population. Leave some room in your outline for focusing more narrowly in this area.
A more comprehensive search is more likely to find sources by researchers from marginalized groups. Cite women, for one example.
For topics where there are plenty of sources, consider focusing on any that included participation among subject population. Look for phrases like "participatory research," but also any that demonstrate engagement with the subject community.
