Researchers

Jennie Popay, Katrina Roen, Lancaster University
Amanda Sowden, Mark Rodgers, University of York
Helen Roberts, Lisa Arai, City University
Mark Petticrew, University of Glasgow
Sally Baldwin, University of York

May 2003 - April 2005

Context

Statistical approaches to combining findings from different studies in systematic reviews of evidence are well developed. However, these techniques are not always appropriate. Narrative approaches to evidence synthesis are therefore being developed but these do not rest on an authoritative body of knowledge. This project will develop, test and disseminate methodological guidance on 'good practice' in narrative synthesis.

Aims and objectives

The study aims to increase the quality of systematic reviews of evidence. The objectives are:

• to review the methodological literature on narrative approaches to evidence synthesis
• to assess existing approaches to narrative synthesis in a sample of systematic reviews
• to produce draft guidance on best practice for the narrative synthesis of quantitative and qualitative data
• to test the use of this guidance
• to disseminate validated good practice guidance on the conduct of narrative synthesis

Methodological aspects of importance

This study is designed to:

• improve social researchers' knowledge and understanding of informed consent
• enhance knowledge about the impact methods of consent have on the research process
• disseminate good practice in relation to research conducted with vulnerable groups for use by social researchers and user groups

Research Design

The study consists of three stages:
Draft guidance on the narrative synthesis of quantitative and qualitative data via:

• a review of literature
• analysis of narrative synthesis approaches in existing reviews
• guidance from experts

The guidance will be tested by:

• synthesising evidence on implementation of child accident prevention initiatives
• integrating this with the two existing effectiveness reviews
• re-synthesis evidence in an existing systematic review

Guidance refined after empirical testing.

Output

Guidance on narrative synthesis in systematic reviews will be included in Cochrane and Campbell Reviewers Handbooks and the NHS CRD Guidelines for Undertaking Systematic Reviews (Khan et al, 2001),
Conference Presentations at: 2004 International Cochrane and Campbell Colloquia
Papers: Narrative Synthesis of evidence: A methodological paper.