[For a compiled list of review types, see: "Meeting the review family: exploring review types and associated information retrieval requirements" :  https://doi.org/10.1111/hir.12276 ]
Traditional or Narrative literature Review
	- Critiques and summarizes a body of literature
 
	- Draws conclusions about the topic
 
	- Identifies gaps or inconsistencies in a body of knowledge
 
	- Requires a sufficiently focused research question
 
Weaknesses:
	- A large number of studies may make it difficult to draw conclusions
 
	- The process is subject to bias that supports the researcher's own work.
 
Systematic Literature Review
	- More rigorous and well-defined approach
 
	- Comprehensive
 
	- Published and unpublished studies relating to a particular subject area
 
	- Details the time frame within which the literature was selected
 
	- Details the methods used to evaluate and synthesize findings of the studies in question
 
Example of systematic review
Meta-analysis
	- A form of systematic review (reductive)
 
	- Takes findings from several studies on the same subject and analyzes them using standardized statistical procedures
 
	- Integrates findings from a large body of quantitative findings to enhance under-standing (study=unit of analysis)
 
	- Draws conclusions and detect patterns and relationships
 
Example of meta-analysis
Meta-synthesis
	- Non-statistical technique
 
	- Integrates, evaluates and interprets findings of multiple qualitative research studies
 
	- Identifies common core elements and themes
 
	- May use findings from phenomenological, grounded theory or ethnographic studies
 
	- Involves analyzing and synthesizing key elements
 
	- Goal:  transform individual findings into new conceptualizations and interpretations
 
Example of meta-synthesis