One containing data based on actual observation or experimentation.
Check for these components:
The most direct route is to search PsycINFO . Select Advanced Search, enter your topic, and then select Empirical Study in the Methodology field.
To search for empirical studies in ERIC, go to Advanced Search, enter your topic in the 1st search box, empirical study in the 2nd box. In the Limiters section: 1) Select Peer-Reviewed. 2) In the Journal or Document field, select Journal. 3) Select Reports-Research from the
Publication Type field.