Review Note
Last Update: 04/01/2024 06:38 AM
Current Deck: Spring 2024 P1 Semester::Spring 2024 IE #5::Pharm 221 Biostats
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Heterogeneity Chi-Squared (x2) Aka {{c1::Cochran Q test}}
- looks to see if the observed differences in the results are due to {{c2::chance alone }}
- Less useful if
- Studies used in the meta-analysis have {{c3::small sample size }}
- {{c3::Only a few studies}} are used in the meta-analysis
- {{c3::A LOT of studies}} are used in the meta-analysis, leading to the test being able to detect {{c3::very small changes}} in heterogeneity that might not be {{c3::clinically significant }}
- Chi-squared with p < 0.05 indicates {{c2::statistically significant heterogeneity (bad)}}
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