Table 5.

Hierarchical linear regression analysis of education level, intolerance of uncertainty, and parental stress in prediction of parental psychological well-being

	Step 1				Step 2
	β	t	p	Collinearity statistics (VIF)	β	t	p	Collinearity statistics (VIF)
Constant		49.98
Primary school Secondary school Academic education	-0.1 -0.09 0.26	-1.09 -0.97 2.86	0.27 0.33 0.005	1.18 1.21 1.21
Constant						21.95
Primary school Secondary school Academic education Parental stress intolerance of uncertainty					-0.75 -0.12 0.25 -0.25 -0.13	-0.86 -1.38 2.82 -2.78 -1.40	0.39 0.16 0.006 0.006 0.16	1.20 1.23 1.23 1.32 1.39
R	0.33				0.47
R2	0.11				0.22
Adjust R2	0.09				0.19
R2 change	0.11				0.11†
F	5.20				7.10

†R² Step 2- R² Step 1