During the course of any research, most of the relevant literature pertaining to a research question is retrieved though searching of recognised databases. However, in addition to this, searching of grey literature can add value to the depth of the research by providing information from varied sources. Grey literature search is an important, but often […]
Traditionally, systematic reviews are considered as the gold standard to inform clinical practice and policy decisions. However, systematic reviews are resource and time intensive. The time factor has been identified as a barrier to implementing results from evidence synthesis, as a result of an incongruence between the time required to produce a full systematic review […]
Missing data are a big concern in any research project and are often unavoidable in spite of investigators’ best efforts. Missing outcomes have two effects: reduced precision and power, and bias. Also, the loss of precision is inevitable, except the possible use of the available data; e.g. to be sure not to exclude from the […]
Scoping reviews are exploratory projects that systematically map the literature on a topic, identifying key concepts, theories and sources of evidence. Scoping reviews are often conducted before full syntheses, and undertaken when feasibility of the research is considered to be a challenge, either because the relevant literature is thought to be vast and diverse (varying […]
