PsycINFO allows you to place limits before you search, and "filters" after you have your results. The most useful ones include:
The PsycINFO database records the Methodology for each article indexed in the database. You can use this criteria to limit your search to a particular article type, or to verify the type of article you have found.
There are several ways to do this:
1. When setting up your search, use the Advanced Search - Search Options
2. After running a search, use the Refine Results facet
3. When looking at the detailed record for an article