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The moderation model; the hypothetical mediation model after Hayes [57], in which variable X (perceived stress) is a predictor, Mo (sense of self-efficacy) is a moderator, and Y (burnout) is a dependent variable. Interaction indexes: 1) b1 refers to the influence of a predictor on a dependent variable; 2) b2 refers to the influence of a moderator on a dependent variable; and 3) b3 refers to interaction effect of a predictor and a moderator for a dependent variable.
