Table 3.

Results of the regression analysis with addictive tendencies as criterion variable (N = 277)

	Variables	Standardized coefficients (Beta)	t	R2 change	F change
Model 1				.04	2.16
Block 1	Gender	−.01	−0.22
	Age	−.13	−1.57
	Marital status	−.02	−0.27
	Educational level	−.05	−0.76
	Work status	−.07	−1.03
Model 2				.06	15.69
Block 1	Gender	.06	0.91
	Age	−.13	−1.59
	Marital status	.02	0.24
	Educational level	−.02	−0.37
	Work status	−.08	−1.16
Block 2	Impulsivity	.25	3.96**
Model 3				.17	29.19
Block 1	Gender	−.02	−0.34
	Age	−.07	−1.00
	Marital status	.01	0.21
	Educational level	−.00	−0.07
	Work status	−.14	−2.18*
Block 2	Impulsivity	.11	1.85#
Block 3	Internet self-efficacy	−.39	−6.89**
	Outcome expectancies	.17	3.00**

Note: ^* p < .05; ^** p < .01; # p = .07. The overall R² of Models 1, 2, and 3 are .04, .10 and .27, respectively.