Comparison of PsycInfo and PsycArticles
* both databases are produced by the American Psychological Association (APA)
In PsycINFO & other ProQuest databases
Use the Methodology limiter to narrow to empirical study (original research). You may also want to try clinical case study and/or treatment outcome/clinical trial.
Use the Methodology limiter to narrow to literature review. You may also want to try systematic review.