"A systematic review is a literature review that is designed to locate, appraise and synthesize the best available evidence relating to a specific research question to provide informative and evidence-based answers. This information can then be used...to make decisions about how to deliver interventions or make changes to policy" (Dickson et al., 2017, p.2)
Dickson, R., Cherry, M. G., & Boland, A. (2017). Carrying out a systematic review as a Master's thesis. In A. Boland, M. G. Cherry & R. Dickson (Eds.), Doing a systematic review: A student's guide (2nd ed., pp.1-20). Sage.