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Table 2 Descriptive statistics and inter-correlations among all variables

From: Assessing and improving health in the workplace: an integration of subjective and objective measures with the STress Assessment and Research Toolkit (St.A.R.T.) method

   Range M D. Std. 1 2 3 4 5 6 7 8
Self-Report measures 1. Workload 1-4 2.59 .75 1        
  2. Boredom 1-5 2.71 .90 .17 1       
  3. Customer relationship management 1-5 2.41 .94 .21* .42** 1      
  4. Psychological health 0-3 0.92 .55 .06 .46** .50** 1     
  5. Emotional exhaustion 0-6 2.80 1.63 .35** .56** .66** .60** 1    
Objective measures 6. Workload (number of customers served) 0-37 12.42 7.62 -.02 .06 .15 -.03 .13 1   
  7. Boredom (variety of tasks) 2-14 5.91 2.49 .09 -.07 -.18 -.11 -.25** .37** 1  
  8. Customer relationship management (customer queue) 0-6 1.70 1.29 .00 .02 .27** .26** .25** .41** -.15 1
  1. *p ≤ 0.01; **p ≤ 0.001.