Researchers, academics and librarians use various terms to describe different types of literature reviews. Indeed there is often confusion between the ways the types are described. The table below has been adapted from a widely used typology of fourteen types of reviews, but here we describe four of the most common types:
Review type |
Description |
Approximate timeframe |
No. of reviewers |
Traditional (narrative) literature review |
A generic review which identifies and reviews published literature on a topic, which may be broad. Typically employs a narrative approach to reporting the review findings. Can include a wide range of related subjects.
Example: Schwebel, F. J., & Larimer, M. E. (2018). Using text message reminders in health care services: A narrative literature review. Internet Interventions, 13, 82-104. doi:10.1016/j.invent.2018.06.002
|
1-4 weeks |
1 |
Rapid review |
Assesses what is known about an issue by using a systematic review method to search and appraise research and determine best practice.
Example: Van Eerd, D. (2019). Knowledge transfer and exchange in health and safety: A rapid review. Policy and Practice in Health and Safety, 17(1), 54-77. doi:10.1080/14773996.2018.1508116
|
2-6 months |
2 |
Scoping review |
Assesses the potential scope of the research literature on a particular topic. Helps determine gaps in the research.
Example: Marshall, R. E., Levison, J. K., McBean, E. A., Brown, E., & Harper, S. L. (2018). Source water protection programs and Indigenous communities in Canada and the United States: A scoping review. Journal of Hydrology, 562, 358-370. doi:10.1016/j.jhydrol.2018.04.070
|
2-8 weeks |
1-2 |
Systematic review |
Seeks to systematically search for, appraise and synthesise research evidence to aid decision-making and determine best practice. Systematic reviews can vary in their approach, and are often specific to the type of study: studies of effectiveness, qualitative research, economic evaluation, prevalence, aetiology or risk, diagnostic test accuracy and so on.
Example: Schön, E.-M., Thomaschewski, J., & Escalona, M. J. (2017). Agile Requirements Engineering: A systematic literature review. Computer Standards & Interfaces, 49, 79-91. doi:https://doi.org/10.1016/j.csi.2016.08.011
|
8 months to 2 years |
2 or more |
Critical review |
Aims to demonstrate writer has extensively researched literature and critically evaluated its quality. Goes beyond mere description to include degree of analysis and conceptual innovation. Typically results in a hypothesis or model.
Example: Tran, H. N., You, S.-J., Hosseini-Bandegharaei, A., & Chao, H.-P. (2017). Mistakes and inconsistencies regarding adsorption of contaminants from aqueous solutions: A critical review. Water research, 120, 88-116. doi:10.1016/j.watres.2017.04.014
|
2-8 weeks |
1 |
Umbrella review |
Specifically refers to review compiling evidence from multiple reviews into one accessible and usable document. Focuses on broad condition or problem for which there are competing interventions and highlights reviews that address these interventions and their results.
The study typically (but not only) appraises systematic reviews and aims at informing on a specific clinical condition or topic.
Example: Thomson, K., Hillier-Brown, F., Todd, A., McNamara, C., Huijts, T., & Bambra, C. (2018). The effects of public health policies on health inequalities in high-income countries: An umbrella review. BMC Public Health, 18(1), 869. doi:10.1186/s12889-018-5677-1
|
2-6 months |
2 or more |
Meta-analysis |
Technique that statistically combines the results of quantitative studies to provide a more precise effect of the results
Example: Bourdon, A., Grandy, S. A., & Keats, M. R. (2018). Aerobic exercise and cardiopulmonary fitness in childhood cancer survivors treated with a cardiotoxic agent: A meta-analysis. Supportive Care in Cancer, 26(7), 2113-2123. doi:10.1007/s00520-018-4208-z
|
8 months to 2 years |
2 or more |
For a more detailed list of review types, see:
Grant, M.J. & Booth, A. (2009). A typology of reviews: An analysis of 14 review types and associated methodologies. Health Information & Libraries Journal, 26(2), 91-108. DOI: 10.1111/j.1471-1842.2009.00848.x
See also our Literature Review Library Resource Guide.