Table 5.

Cross-sectional regression analyses for life satisfaction.

Model	Predictors	Life Satisfaction (Wave 1)					Life Satisfaction (Wave 2)
		β	t	Cohen’s f2	R2 Change	F Change	β	t	Cohen’s f2	R2 Change	F Change
1	Age	−0.07	−3.68 ***	0.005	0.014	12.43 ***	−0.03	−1.62	0.001	0.011	9.65 ***
	Gender a	−0.07	−3.73 ***	0.005			−0.09	−4.42 ***	0.008
	Family intactness b	−0.07	−3.34 ***	0.004			−0.05	−2.72 **	0.003
2	CBC	0.51	29.82 ***	0.338	0.253	889.31 ***	0.44	24.86 ***	0.237	0.192	618.23 ***
	PA	0.48	27.55 ***	0.289	0.224	758.81 ***	0.44	24.71 ***	0.234	0.190	610.59 ***
	GPYD	0.60	38.21 ***	0.553	0.356	1459.64 ***	0.58	35.88 ***	0.491	0.329	1287.62 ***
	PIT	0.55	33.44 ***	0.425	0.298	1118.14 ***	0.56	34.09 ***	0.444	0.308	1162.41 ***
	TPYD	0.61	39.38 ***	0.587	0.370	1550.97 ***	0.58	36.05 ***	0.495	0.331	1299.26 ***

Note. In model 2, control variables were statistically controlled, and predictors were included in the model separately; measures of positive youth development at Wave 1 and Wave 2 were included as predictors to predict internet addiction at Wave 1 and Wave 2, respectively. ^a 1 = boy, 2 = girl; ^b 1 = intact, 2 = non-intact; CBC = cognitive-behavioral competence; PA = prosocial attribute; GPYD = general positive youth development; PIT = positive identity; TPYD = mean of total positive youth development. ** p < 0.01; *** p < 0.001.