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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: J Exp Soc Psychol. 2016 Mar 24;66:29–38. doi: 10.1016/j.jesp.2015.09.012

Fig. 1.

Fig. 1

Single mediator model in which X is randomized and M and Y are measured. The a coefficient reflects the effect of X on M; the b coefficient reflects the statistical effect of M on Y, controlling for X; the c coefficient reflects the total effect of X on Y, not controlling for M; and the c’ represents the direct effect of X on Y, controlling for M.