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Systematic Reviews - Social Sciences : Evidence synthesis support at Cline Library

Evidence Synthesis & Literature Reviews

This guide is for social science disciplines and provides information on review types for evidence synthesis, including tools to help you decide which review type best serves your research needs.

Quick definitions for commonly used review types

A broad term referring to reviews with a wide scope and non-standardized methodology.

  • Search strategies, comprehensiveness, and time range covered vary and do not follow an established protocol.
  • Can be completed by one person. 
  • Analysis may be chronological, thematic, etc.

A methodical and comprehensive literature synthesis focused on a well-formulated research question.

• Aims to identify and synthesize all of the scholarly research on a particular topic, including both published and unpublished studies.

• Conducted in an unbiased, reproducible way (transparent) to provide evidence for practice and policy-making and to identify gaps in research.

• May involve a meta-analysis.

A statistical technique for combining the findings of quantitative studies to provide a more precise effect of the results.  

• Uses statistical methods to objectively evaluate, synthesize, and summarize results.

• May be conducted independently or as part of a systematic review.

Preliminary assessment of potential size and scope of available research literature. 

  • Seeks to identify research gaps and opportunities for evidence synthesis.
  • May critically evaluate existing evidence, but does not attempt to synthesize the results in the way a systematic review would.
  • May take longer than a systematic review.

Applies systematic review methodology within a time-constrained setting. 

  • Employs methodological “shortcuts” (limiting search terms for example) at the risk of introducing bias.
  • Useful for addressing issues needing quick decisions.
  • Assessment of what is already known. 

Reviews other systematic reviews on a topic.

• Often defines a broader question than is typical of a traditional systematic review.

• Most useful when there are competing interventions to consider.

Definitions collected from:

Grant, M. J., & Booth, A. (2009). A typology of reviews: an analysis of 14 review types and associated methodologies. Health information and libraries journal26(2), 91–108. https://doi.org/10.1111/j.1471-1842.2009.00848.x

Sutton, A., Clowes, M., Preston, L., & Booth, A. (2019). Meeting the review family: exploring review types and associated information retrieval requirements. Health information and libraries journal36(3), 202–222. https://doi.org/10.1111/hir.12276

Levels of support provided by the librarian

What to expect: 

  • Discuss research question or focus to determine type of review
    • If necessary, discuss types of reviews
  • Discuss question formats and available guidelines
  • Project timeline and research project team members
  • Discuss resources to search including grey literature resources
    • This may involve follow-up work from the librarian

Duration: 

Typically one hour

What to expect: 

  • In addition to the consultation services: 
  • Assist in the planning phase including protocol development. 
  • Discuss and determine sources to search, including grey literature.
    • Pre-searching databases.
  • Assistance with identifying key terms. 
    • This may involve follow-up work from the librarian
  • Develop and test search strategies. 
  • Assist with additional resources, such as setting up a shared citation manager account. 

Librarian acknowledged in publication.

What to expect: 

  • Multiple sessions, as needed, throughout the project. 
  • Assist in research question development and review type. 
  • Assist in the development and registration of review protocol. 
  • Design, test, and conduct searches. 
  • Coordinate citation management, search documentation, and document retrieval. 
    • Data extraction from all resources
  • Manage search results and documentation.
  • Write methodology for manuscripts, including flow diagrams when needed. 

Librarians are co-authors on publications.

 

This service is available for NAU graduate students who are unfamiliar with evidence synthesis review processes.  The librarian will provide guidance during the review process. 

Choosing a review type

Cornell University Library created a decision tree on review methodologies. Use this tool to help decide which type of review you should conduct.