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Evidence Categories for Bayes Factor, adapted from Jeffreys (1961), cited in Wetzels et al. (2011).
| Bayes factor | Interpretation |
|---|---|
| >100 | Decisive evidence for HA |
| 30–100 | Very strong evidence for HA |
| 10–30 | Strong evidence for HA |
| 3–10 | Substantial evidence for HA |
| 1–3 | Anecdotal evidence for HA |
| 1 | No evidence |
| 1/3–1 | Anecdotal evidence for H0 |
| 1/10–1/3 | Substantial evidence for H0 |
| 1/30–1/10 | Strong evidence for H0 |
| 1/100–1/30 | Very strong evidence for H0 |
| <1/100 | Decisive evidence for H0 |
