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The power to detect the total effect (TE) c and the power to detect the indirect effect (IE) ab under complete mediation when c = ab = 0.16 (upper panel) or c = ab = 0.25 (lower panel) for varying combination of a and b and varying sample sizes. Significance is assessed at the 0.05 level and inference based on bias-corrected bootstrap intervals (left panel) or percentile bootstrap intervals (right panel).
