Difference between revisions of "Meta-analysis"
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| − | A meta-analysis is a statistical technique that combines the result of several studies in order to test a research hypothesis. | + | A '''meta-analysis''' is a statistical technique that combines the result of several studies in order to test a research hypothesis. |
| − | There are | + | There are possible weaknesses to this approach: |
| + | * It is harder to control sources of bias since multiple studies are involved. | ||
| + | * A bias towards a predetermined outcome can influence the choice of studies to combine. | ||
| − | [[category: | + | [[category:Probability and Statistics]] |
Revision as of 06:08, August 2, 2007
A meta-analysis is a statistical technique that combines the result of several studies in order to test a research hypothesis.
There are possible weaknesses to this approach:
- It is harder to control sources of bias since multiple studies are involved.
- A bias towards a predetermined outcome can influence the choice of studies to combine.
