Q. What is an empirical research? How can I find articles with empirical data?
Research based on experimentation or observation, i.e. empirical research, is conducted when new data is collected. Empirical evidence (the record of one's direct observations or experiences) can be analyzed quantitatively or qualitatively.
Certain databases, PsycINFO for instance, have a field which limits the results only to the ones with empirical data.