155 Proactive Vitality Management Among Employees with Chronic Liver Disease Moderated Mediation Hypotheses According to moderated mediation hypothesis 3, higher levels of T1 self-insight strengthen the indirect relationships between T1 PVM and T3 functional limitations (hypothesis 3a) and between T1 PVM and T3 absenteeism (hypothesis 3b), both mediated by T2 exhaustion. We first tested this hypothesis without including the paths for earlier levels of the mediators (i.e., T1) and outcome variables (i.e., T2). The interaction effect between PVM and self-insight on exhaustion was significant (estimate = -.20, p < .05; see Figure 2). Further examination of the conditional indirect effect showed that the negative relationship between T1 PVM and T3 functional limitations through T2 exhaustion was stronger at self-insight levels +1 SD above the mean (estimate = -.21, p < .01) than at self-insight levels -1 SD below the mean (estimate = -.04, p = .662). In addition, in line with hypothesis 3b, the negative relationship between T1 PVM and T3 absenteeism through T2 exhaustion was stronger at self-insight levels +1 SD above the mean (estimate = -.83, p < .01) than at self-insight levels -1 SD below the mean (estimate = -.18, p = .490). Overall, these results provide initial support for hypothesis 3a and 3b. FIGURE 2 Visual representation of the interaction between self-insight and T1 proactive vitality management in their effect on T2 work exhaustion. Low levels of proactive vitality management and self-insight are represented by values of -1SD below their respective means, whereas high levels are represented by values of +1SD above their respective means. management. 6
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