J Clin Psychiatry
. 2020 Sep 22;81[5]:20f13681.Actions
- Search in PubMed
- Search in NLM Catalog
- Add to Search
Mean Difference, Standardized Mean Difference [SMD], and Their Use in Meta-Analysis: As Simple as It Gets
Chittaranjan Andrade 1
Affiliations Expand
Affiliation
- 1 Department of Clinical Psychopharmacology and Neurotoxicology, National Institute of Mental Health and Neurosciences, Bangalore, India. .
- PMID: 32965803
- DOI: 10.4088/JCP.20f13681
Item in Clipboard
weighted mean difference [WMD]
In a meta-analysis, when study results measured using the same scale are being combined, the difference between two means, weighted by the precision of the study.
Note: The precision of the studys estimate of effect may, for example, correspond to the inverse of the variance.
[Related concept: standardised mean difference]