The Importance and Process of Scoping Reviews in Evidence Synthesis

The Importance and Process of Scoping Reviews in Evidence Synthesis

Introduction:
In the field of evidence synthesis, scoping reviews play a vital role in gathering and mapping available evidence on a particular topic. These reviews provide a broader scope with less restrictive inclusion criteria, allowing for the inclusion of diverse sources of evidence and research methodologies. In this article, we will explore the significance of scoping reviews, compare them to other types of reviews, and discuss the process involved in conducting a scoping review.

The Significance of Scoping Reviews:
Scoping reviews serve as a starting point for evidence synthesis by helping researchers understand the existing evidence landscape on a specific topic. Unlike systematic reviews, which focus on specific research questions and employ strict inclusion and exclusion criteria, scoping reviews aim to capture a wide range of evidence sources. By doing so, scoping reviews enable researchers to identify gaps in knowledge, explore different types of evidence, and gain a comprehensive understanding of the topic at hand.

Comparison with Other Types of Reviews:
When comparing scoping reviews with traditional literature reviews and systematic reviews, several key differences become apparent. Traditional literature reviews are typically narrative in nature, summarizing existing literature without a specific research question or inclusion criteria. Systematic reviews, on the other hand, follow a strict methodology to answer specific research questions based on pre-defined inclusion and exclusion criteria. Scoping reviews, however, offer a more flexible approach, allowing for the inclusion of various sources of evidence and research methodologies. This flexibility makes scoping reviews particularly useful when exploring emerging or complex topics.

The Process of Conducting a Scoping Review:
The first step in conducting a scoping review is the development of an a priori protocol, which outlines the research question(s) and inclusion criteria. The protocol should consider the PCC framework, focusing on the Population, Concept, and Context of the topic under investigation. This framework ensures that the scoping review captures all relevant aspects of the research question.

Once the protocol is established, the review team can begin searching for evidence from diverse sources, including both quantitative and qualitative studies. The goal is to map or chart the available data to identify patterns, gaps, and trends in the evidence. Various tools and platforms, such as Open Science Framework and Figshare, can aid in organizing and presenting the findings of the scoping review.

Actionable Advice:

1. Clearly define the research question(s) and inclusion criteria before starting a scoping review. This will help guide the search and ensure a focused and comprehensive review.
2. Consider using a combination of quantitative and qualitative evidence sources to capture a more holistic understanding of the topic.
3. Utilize tools and platforms, such as Open Science Framework and Figshare, to facilitate the organization and dissemination of the scoping review findings.

Conclusion:
Scoping reviews are an essential component of evidence synthesis, providing a broad overview of available evidence on a specific topic. By incorporating diverse sources of evidence and research methodologies, scoping reviews offer a more flexible and comprehensive approach compared to traditional literature reviews and systematic reviews. By following a systematic process and utilizing appropriate tools, researchers can effectively conduct scoping reviews and contribute to the advancement of knowledge in their field.