A systematic review (SR) attempts to collate all empirical evidence to answer a specific research question. It minimizes bias by using a predefined protocol.
SR is a form of original (primary) research. In an SR, the "research subjects" are individual studies. These studies are selected and collated to answer a research question. SRs began in clinical medicine, and the methodology has been adapted for other fields.
WKU Libraries' subject specialists can assist with search strategy, and provide guidance and resources on the systematic review process.