Table 4 Multiple hierarchical regressions (Ratios of variance and standardized beta weights of the last step in the regression)

β

R²

ΔR²

Socio-demographic variables

.04

.04

   Years of experience

-.14*

   Gender

-.03

   Age

-.02

Personal resources

.24

.20

   Resilience

.10

   Self-efficacy

.04

   Optimism

.12*

   Pessimism

.04

Job demands

.37

.13

   Quantitative demands

-.29***

   Emotional demands

-.02

   Demands for hiding emotions

.01

Job resources

.59

.22

   Possibilities for development

.21***

   Degree of freedom at work

.03

   Influence at work

.09

   Sense of community

.25***

   Social support

.04

   Social relations

-.03

   Quality of leadership

.16**

   Feedback at work

.05

Total R ²

.59