Table 1.

A heuristic classification scheme for Bayes factors BF₁₀ (Lee and Wagenmakers 2013, p. 105; adjusted from Jeffreys, 1961)

Bayes factor	Evidence category
> 100	Extreme evidence for ${\mathcal{\mathscr{H}}}_1$
30 - 100	Very strong evidence for ${\mathcal{\mathscr{H}}}_1$
10 - 30	Strong evidence for ${\mathcal{\mathscr{H}}}_1$
3 - 10	Moderate evidence for ${\mathcal{\mathscr{H}}}_1$
1 - 3	Anecdotal evidence for ${\mathcal{\mathscr{H}}}_1$
1	No evidence
1/3 - 1	Anecdotal evidence for ${\mathcal{\mathscr{H}}}_0$
1/10 - 1/3	Moderate evidence for ${\mathcal{\mathscr{H}}}_0$
1/30 - 1/10	Strong evidence for ${\mathcal{\mathscr{H}}}_0$
1/100 - 1/30	Very strong evidence for ${\mathcal{\mathscr{H}}}_0$
< 1/100	Extreme evidence for ${\mathcal{\mathscr{H}}}_0$