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. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: Physiol Behav. 2021 May 29;238:113479. doi: 10.1016/j.physbeh.2021.113479

Figure 6. Mediation models.

Figure 6

Four mediation analyses were conducted. x is an independent variable (recalled stress portion size in diagrams A & B, top row, and typical portion size in diagrams C & D, bottom row). y is a dependent variable (ad libitum stress intake in diagrams A & B and ad libitum rest intake in diagrams C & D). m is the proposed mediating variable (momentary stress portions in diagrams A & B and momentary rest portions in diagrams C & D). Diagrams A & C (left column) are mediation analyses done for milk chocolate (x and m) and M&Ms (y), while diagrams B & D (right column) are for potato chips (x, m, and y). In diagrams A-D, the coefficients on the solid arrows are unstandardized and the coefficients on dashed arrows are standardized (β). The solid arrow between x and y represents the direct effect of x on y, while the dashed arrow represents the indirect effect of x on y as the path of x to y through m. Both of these effects comprise the total effect of x on y.

* P ≤ 0.05

** P ≤ 0.01

*** P ≤ 0.005

**** P ≤ 0.001