𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Modelling study quality in meta-analysis

✍ Scribed by David Tritchler

Book ID
101238674
Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
105 KB
Volume
18
Category
Article
ISSN
0277-6715

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✦ Synopsis

When summarizing studies in a meta-analysis, the methodological quality of the studies can vary widely. This variation is often described by assigning quality scores to studies. This paper presents a probability model for the e!ect of quality on a summary e!ect measure. The model motivates criteria used to assess quality, and can be used to incorporate quality into the calculation of a summary e!ect. We derive a number of summarization methods and compare them for simulated data and an actual set of studies.

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