90 Chapter 4 Testing Hypotheses Proactive vitalitymanagement was hypothesized to relate positively to work engagement (Hypothesis 1), and to creativity via work engagement (Hypothesis 2). Analyses revealed (see Model 1; Table 2) that week-level proactive vitality management positively related to week-level work engagement, also after controlling for lagged work engagement (estimate = .455, SE = .052, p < .01), providing support for Hypothesis 1. Furthermore, we used the Monte Carlo method (Selig & Preacher, 2008) to assess the indirect relationship of week-level proactive vitality management with week-level creativity via week-level work engagement. This was found to be positive (CIL = .149, CIU = .302), supporting Hypothesis 2. These findings and the findings below are also summarized in overall Figure 1. FIGURE 1 The model of proactive vitality management and creativity: Summary of multilevel regression coefficients based on Table 2 (Model 3) and Table 3 (Model 3). ** p < .01, * p < .05, † p = .06
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