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. 2020 Jan 22;8:e8246. doi: 10.7717/peerj.8246

Figure 3. Power for test of mediation given the scenario where C as a weak X–Y Confounder.

Figure 3

The IEFM approach is represented by the blue line and the proposed PSRM approach is represented by the green line. As seen in the plots below, the power is comparable for these two approaches for sample sizes of (A) n = 30 and (B) n = 100.