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Table 6 Bivariate correlations (Spearman’s rho) between study factors and criterion variables

From: Measuring job stress in transportation workers: psychometric properties, convergent validity and reliability of the ERI and JCQ among professional drivers

 

ERIF1

ERIF2

ERIF3

JCQF1

JCQF2

JCQF3

JCQF4

JCQF5

JCQF6

JCQF7

JCQF8

CVa

CVb

CVc

CVd

CVe

CVf

CVh

ERI factors

 ERIF1

Efforts

–

                 

 ERIF2

Rewards

−.444**

–

                

 ERIF3

ERI

.826**

−.851**

–

               

JCQ factors

 JCQF1

Skill Discretion (F1)

−.012

.322**

−.194**

–

              

 JCQF2

Decision Authority (F2)

−.099*

.378**

−.286**

.491**

–

             

 JCQF3

Psychological Demands (F3)

.624**

−.468**

.649**

−.083*

−.176**

–

            

 JCQF4

Supervisor Support (F4)

−.290**

.650**

−.557**

.356**

.445**

−.372**

–

           

 JCQF5

Co-worker Support (F5)

−.211**

.427**

−.380**

.276**

.281**

−.250**

.537**

–

          

 JCQF6

Control (F6)

−.099*

.402**

−.277**

.784**

.910**

−.141**

.469**

.312**

–

         

 JCQF7

Social Support (F7)

−.282**

.629**

−.539**

.357**

.422**

−.359**

.905**

.824**

.452**

–

        

 JCQF8

Job Strain (F8)

.466**

−.565**

.619**

−.489**

−.654**

.791**

−.531**

−.362**

−.673**

−.515**

–

       

Criterion variables

 CVa

Demands (F1)

.628**

−.548**

.695**

−.140**

−.188**

.611**

−.408**

−.381**

−.192**

−.445**

.532**

–

      

 CVb

Influence and Development (F2)

−.115**

.431**

−.329**

.428**

.457**

−.203**

.499**

.337**

.513**

.490**

−.447**

−.151**

–

     

 CVc

Relationships and Leadership (F3)

−.432**

.667**

−.651**

.312**

.404**

−.473**

.672**

.527**

.422**

.692**

−.576**

−.594**

.635**

–

    

 CVd

Job Insecurity (F4)

.257**

−.312**

.342**

−.043

−.029

.236**

−.160**

−.095*

−.042

−.154**

.168**

.410**

−.092*

−.301**

–

   

 CVe

Strain (F5)

.475**

−.667**

.679**

−.329**

−.400**

.517**

−.585**

−.462**

−.423**

−.602**

.609**

.713**

−.644**

−.849**

.392**

–

  

 CVf

Psychological Distress

.247**

−.279**

.321**

−.180**

−.250**

.308**

−.191**

−.200**

−.244**

−.217**

.365**

.406**

−.358**

−.399**

.249**

.547**

–

 

 CVg

Self-reported Health Status

−.149**

.260**

−.250**

.148**

.200**

−.138**

.232**

.225**

.189**

.261**

−.208**

−.318**

.273**

.382**

−.157**

−.479**

−.477**

–

 CVh

Traffic Crashes (2 years)

.051

−.093*

.084*

−.116**

−.113**

.088*

−.094*

−.088*

−.133**

−.110**

.170**

.092*

−.094*

−.095*

−.048

.110**

.115**

−.099*

  1. Notes: a-e,gCOPSOQ factors; fGHQ-12 indicator; hSelf-reported crash rate; *Correlation is significant at 0.05 level (2-tailed); **Correlation is significant at 0.01 level (2-tailed)