Fig. 3

Mediators enables consideration of context. Absence of a hypothesized mechanism limits analysis of context (Panel A). Proposed mechanisms — in this case a single mediator for simplicity — offers a conceptual receptacle for how context might influence a strategy’s effects (Panel B). In the convention of directed acyclic diagrams, two arrows that point into one node implies that the effect of each arrow is influenced by the other, in this case representing how context effects the effect of the strategy on the outcome