6: Multiple Tests
- Page ID
- 1752
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- 6.1: Multiple Comparisons
- When you perform a large number of statistical tests, some will have P values less than 0.05 purely by chance, even if all your null hypotheses are really true. The Bonferroni correction is one simple way to take this into account; adjusting the false discovery rate using the Benjamini-Hochberg procedure is a more powerful method.
- 6.2: Meta-Analysis
- To use meta-analysis when you want to combine the results from different studies, making the equivalent of one big study, so see if an overall effect is significant.