Table 3 Posterior means, standard deviations and the probability of observing a clinically meaningful effect size of greater than 5 for non-informative, pessimistic and optimistic priors
From: The statistical interpretation of pilot trials: should significance thresholds be reconsidered?
Prior | Posterior mean | Posterior SD | P(>5) |
|---|---|---|---|
Non-Informative | 12.9 | 6.7 | 0.88 |
Pessimistic | 5.5 | 2.8 | 0.58 |
Optimistic | 7.4 | 1.8 | 0.91 |