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Judging the ‘weight of evidence’ in systematic reviews: introducing rigour into the qualitative overview stage by assessing Signal and Noise

Edwards, Adrian G., Elwyn, Glyn, Hood, Kerenza and Rollnick, Stephen 2000. Judging the ‘weight of evidence’ in systematic reviews: introducing rigour into the qualitative overview stage by assessing Signal and Noise. Journal of Evaluation in Clinical Practice 6 (2) , pp. 177-184. 10.1046/j.1365-2753.2000.00212.x

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Abstract

The ‘weight of evidence’ in a topic area can be judged by assessing the ‘Signal’ from available research publications and tempering the importance attached by the level of ‘Noise’ (the inverse of methodological quality). This assessment process has validity and reliability and can be applied to the ‘qualitative overview’ stage of systematic reviews. This enables the important themes and areas of relevance to the research question to be identified. Important findings from individual papers may also be identified providing further information which may not be evident from quantitative analysis. The findings from these more qualitative stages of analysis complement, but do not replace, quantitative analysis.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > R Medicine (General)
Uncontrolled Keywords: evidence; systematic reviews; qualitative analysis; rigour; signal; noise
Publisher: Wiley-Blackwell
ISSN: 1356-1294
Last Modified: 17 Jun 2019 02:31
URI: http://orca.cf.ac.uk/id/eprint/64189

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