Table 3. Differences in stress between users and nonusers of SNS.

	NUsers	MUsers	SDUsers	NNonusers	MNonusers	SDNonusers	t	df	p	Cohen’s d
Note. SNS = social networking sites.
Wave 1	2,405	2.69	0.95	962	2.42	0.97	7.43	1,727.61	< .001	0.29
Wave 2	1,949	2.65	0.94	728	2.39	0.95	6.24	1,287.91	< .001	0.27
Wave 3	1,633	2.60	0.90	640	2.33	0.91	6.36	1,157.95	< .001	0.30
Wave 4	1,373	2.53	0.95	580	2.35	0.87	4.20	1,173.01	< .001	0.23
Wave 5	1,141	2.43	0.94	486	2.3	0.92	2.59	935.91	.01	0.14
Wave 6	928	2.48	0.92	402	2.35	0.93	2.50	758.73	.013	0.15