Table 5

Multiple hierarchical regressions (ratios of variance and standardised β weights)

Explanatory variables	WFC
Explanatory variables	β	R²	R² change
Step 1: Sociodemographic variables		0.05	0.05
Age	−0.12*
Gender	0.07
Marital status	0.05
Children	0.06
Years of experience	−0.11*
Step 2: Personal resources		0.15	0.10
Resilience	−0.18**
Optimism	−0.10*
Pessimism	0.07
Self-efficacy	−0.12*
Step 3: Job demands		0.24	0.09
Quantitative demands	0.26**
Emotional demands	−0.04
Step 4: Job resources		0.41	0.17
Influence at work	−0.12*
Possibilities for development	−0.23**
Degree of freedom at work	−0.16*
Sense of community	−0.18**
Feedback	−0.10*
Quality of leadership	−0.16**
Social support	−0.14*
Social relationships	−0.13*
Total R²	0.41

β, standardised β-coefficients from the final step of the model. R², explanation rate. ΔR², change in the explanation rate at each step. *p<0.05; **p<0.01.
WFC, work–family conflict.