30 Chapter 2 TABLE 1 Items, means and standard deviations of the proactive vitality management scale on general level (N = 813 individuals) and daily-level (N = 521 days) Items general level M SD 1 I make sure that I feel energetic during my work 5.49 .91 2 I make sure that I can focus well on my work 5.45 .89 3 I motivate myself 5.53 1.00 4 I make sure that I can approach my work with a fresh pair of eyes 5.38 .90 5 I try to inspire myself 5.41 1.01 6 I make sure that I have enough space in my head to think 5.03 1.05 7 I make sure to approach my work with a positive mindset 5.82 .87 8 I make sure that I can do things that make me enthusiastic 5.47 .96 Items day-level M SD 1 Today, I made sure that I felt energetic during my work 4.70 1.69 2 Today, I made sure that I could focus well on my work 5.14 1.58 3 Today, I motivated myself 4.96 1.67 4 Today, I made sure that I could approach my work with a fresh pair of eyes 4.75 1.63 5 Today, I tried to inspire myself 4.61 1.75 6 Today, I made sure that I had enough space in my head to think 4.93 1.60 7 Today, I made sure to approach my work with a positive mindset 4.98 1.70 8 Today, I made sure that I could do things that made me enthusiastic 4.60 1.74 Note. Cronbach’s alpha of the general scale was α = .86. Cronbach’s alpha coefficients of the daily scale ranged fromα = .95 to α = .97. Response options ranged from1 (totally disagree) to 7 (totally agree). Confirmatory Factor Analysis Using Sample 2, we performed confirmatory factor analysis (CFA) on the eight proactive vitality management items using AMOS software (Arbuckle, 2013). To assess model fit, four different fit indices were used. For absolute model fit, the goodness of fit index (GFI) and the standardized root mean square residual (SRMR) were examined. In addition, for relative model fit, we examined the Tucker-Lewis index (TLI) and the comparative fit index (CFI). Values of .08 and under (for SRMR) or .90 and over (for CFI, TLI, and GFI) indicate acceptable fit, although some scholars have argued that .95 is a better cut-off point (Byrne, 2001; Hu & Bentler, 1999). The results generally indicated acceptable fit for the one-factor model (CFI = .94, TLI = .92, GFI = .95, SRMR = .044), with standardized factor-loadings ranging from .58 to .76 (all p’s < .001). Taken together, our results show
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