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Scenario A (n = 64 per condition) and scenario B (n = 11 per condition) in terms of expected proportions of Type I error prevalence in a pile of statistically significant outcomes.
| Scenario | A (n = 64) | B (n = 11) |
|---|---|---|
| Expected rejections of the 20 true null hypotheses | 1 | 1 |
| Expected rejections of the 80 untrue null hypotheses | 64 | 16 |
| Expected proportion of Type I errors in the pile of statistically significant results | 1/65 (≈ 0.015) | 1/17 (≈ 0.059) |
