Table 3 Bayes factor analysis for time of TT-test execution and average power output among caffeine supplementation conditions.

From: Caffeine increases performance and leads to a cardioprotective effect during intense exercise in cyclists

Experimental condition

Prior odds

Posterior odds

BF10, U

Probability %

Time (s)

PP

PC

0.587

3.574

6.084M

85.9

PP

CC

0.587

6.889

11.728S

92.1

PC

CC

0.587

0.164

0.280a

21.9

Average power output (W)

PP

PC

0.587

14.862

25.301S

96.2

PP

CC

0.587

47.066

80.125V

99.8

PC

CC

0.587

0.103

0.175a

14.9

  1. The posterior odds have been corrected for multiple testing by fixing to 0.5 the prior probability that the null hypothesis holds across all comparisons (Westfall, Johnson, & Utts, 1997). Individual comparisons are based on the default t test with a Cauchy (0, r = 1/sqrt(2)) prior. The “U” in the Bayes factor denotes that it is uncorrected (PP: Placebo–Placebo; PC: Placebo–Caffeine; CC: Caffeine–Caffeine). Letters indicate the outcome classified as: A = anecdotal; M = moderate; V = very strong; E = extreme favoring the alternative hypothesis; a = anecdotal; m = moderate favoring the null hypothesis.
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