Table 1 Evidence categorisation for P value, effect size, and Bayes factor. Modified Jeffreys’ Bayes factor cutoffs indicating evidence categorised for Bayes factor BF01 [27,28,29]
Measures | Description |
|---|---|
P value | |
  < 0.001 | Decisive evidence against the null hypothesis |
 0.001 – 0.01 | Substantive evidence against the null hypothesis |
 0.01 – 0.05 | Positive evidence against the null hypothesis |
  > 0.05 | No evidence against the null hypothesis |
Effect size | |
  < 0.2 | Small effect size |
 0.2 – 0.5 | Small to medium effect size |
 0.5 – 0.8 | Medium to large effect size |
 0.8 | Large to very large effect size |
Bayes factor01 | |
  < 1/100 | Extreme evidence for the alternative hypothesis |
 1/30 – 1/100 | Very strong evidence for the alternative hypothesis |
 1/10 – 1/30 | Strong evidence for the alternative hypothesis |
 1/3 – 1/10 | Moderate evidence for the alternative hypothesis |
 1 – 1/3 | Anecdotal evidence for the alternative hypothesis |
 1 | No evidence |
 1 – 3 | Anecdotal evidence for the null hypothesis |
 3 – 10 | Moderate evidence for the null hypothesis |
 10 – 30 | Strong evidence for the null hypothesis |
 30 – 100 | Very strong evidence for the null hypothesis |
  > 100 | Extreme evidence for the null hypothesis |