Figure 3.

Different ways to formalize a plausible interval for the effect size d. In the left panel, a Uniform distribution with lower bound = 0.20 and upper bound = 0.60 is used. In the right panel, a doubly truncated Normal distribution with lower bound = 0.20, upper bound = 0.60, mean = 0.40, and standard deviation equal to $\frac{1}{6}$ the length of the interval (i.e., $\frac{0.60-0.20}{6}=0.067$) is used.