Scoping and Systematic Reviews.pdf
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This document outlines the key differences between systematic reviews and scoping reviews. Systematic reviews follow a structured methodology to answer specific research questions with rigorous quality assessments, while scoping reviews are broader explorations that aim to map existing literature and identify research gaps without stringent criteria. The document highlights characteristics, purposes, search methods, and data synthesis approaches for both types of reviews.
Scoping and Systematic Reviews.pdf
- 1. 8/28/2023 1 THE DIFFERENCE BETWEEN SCOPING REVIEWS AND SYSTEMATIC REVIEWS Prof Dr Ejaz Ahmad Khan Introduction Introduction ■ Welcome to the presentation on the differences between systematic reviews and scoping reviews. ■ In this presentation, we will explore the key distinctions between these two types of literature review methodologies.
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- 3. 8/28/2023 3 Systematic reviews Systematic reviews ■ Systematic reviews are comprehensive, rigorous reviews of existing literature that follow a structured methodology to answer a specific research question. – They involve systematic search, selection, appraisal, synthesis, and analysis of relevant studies. ■ Key Characteristics – Clear research question or objective. – Explicit and predefined inclusion and exclusion criteria. – Comprehensive search across various databases. – Rigorous quality assessment of included studies. – Meta-analysis for quantitative data synthesis, if applicable. – Aim to provide an evidence-based conclusion to a specific question. Scoping Reviews Scoping Reviews ■ Scoping reviews are broader exploratory reviews that map the existing literature landscape around a particular topic or research area. ■ They aim to identify the extent, range, and nature of existing research on a topic, often to inform future research directions. ■ Key Characteristics – Broad research question or objective. – Inclusion criteria are more flexible, allowing for a wider range of study types. – Comprehensive search but may not be as exhaustive as systematic reviews. – No formal quality assessment or meta- analysis; focus on summarizing findings. – Identifying gaps, key concepts, and research trends in the literature. – Useful for identifying areas that need further investigation.
- 4. 8/28/2023 4 Purpose and Goals Purpose and Goals ■ Systematic Reviews – Focus on addressing a specific research question or hypothesis. – Aim to provide a definitive answer based on existing evidence. – Often used to inform clinical or policy decisions. ■ Scoping Reviews – Aim to provide an overview of existing literature without necessarily answering a specific question. – Help in identifying gaps, challenges, and potential avenues for future research. – Useful for defining the scope of a complex or emerging topic. Search and Selection Search and Selection ■ Systematic Reviews – Highly structured search strategy with predefined keywords and criteria. – Thorough selection process based on strict inclusion and exclusion criteria. – Minimize bias through transparent and replicable methods. ■ Scoping Reviews – More flexible search strategy to capture a wide range of studies. – Inclusion criteria may evolve as the review progresses. – Focus on inclusiveness rather than rigorous selection
- 5. 8/28/2023 5 Data Synthesis Data Synthesis ■ Systematic Reviews – Quantitative data synthesis (meta-analysis) if appropriate. – Summary of findings often presented in tables and figures. – Statistical methods used to combine data from individual studies. ■ Scoping Reviews – Qualitative synthesis of findings. – Summarize and categorize results without statistical analysis. – Focus on presenting a descriptive overview of the literature. Comparison among Literature Reviews, Scoping Reviews and Systematic Reviews Comparison among Literature Reviews, Scoping Reviews and Systematic Reviews
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