Fig. 2
The Mutual Influence Model (MIM). Note. X1 and X2 are predictor variables for person 1 and person 2, Y1 and Y2 are their respective outcome variables, and e1 and e2 are the corresponding error terms. Each person’s outcome (Y) influences the other’s outcome. The effect of each actor’s independent variable on the partner’s outcome (Y) is mediated by the actor’s own outcome (see bolded arrows). The dashed line represents the indirect effect of the actor on the partner [11]