Empirical studies are those based on actual and objective observation or experimentation. Articles that describe empirical research studies are published in scholarly or academic journals. Most empirical studies are found in peer-reviewed or refereed academic journals and contain the following sections:
What is a systematic review?
A systematic review attempts to collate all empirical evidence that fits pre-specified eligibility criteria in order to answer a specific research question. It uses explicit, systematic methods that are selected with a view to minimizing bias, thus providing more reliable findings from which conclusions can be drawn and decisions made. The key characteristics of a systematic review are: