Table 2.

The results of confirmatory factor analysis (N=856)

Dimension	No. of item	Factor loading	CR	AVE	Cronbach’s α
COVID-19-related PTSD	PTSD1	0.757	0.950	0.500	0.947
	PTSD2	0.718
	PTSD3	0.749
	PTSD4	0.736
	PTSD5	0.515
	PTSD6	0.583
	PTSD7	0.711
	PTSD8	0.657
	PTSD9	0.826
	PTSD10	0.760
	PTSD11	0.766
	PTSD12	0.744
	PTSD13	0.699
	PTSD14	0.655
	PTSD15	0.701
	PTSD16	0.786
	PTSD17	0.708
	PTSD18	0.661
	PTSD19	0.636
FoMO	FoMO1	0.714	0.904	0.487	0.902
	FoMO2	0.716
	FoMO3	0.776
	FoMO4	0.771
	FoMO5	0.621
	FoMO6	0.699
	FoMO7	0.698
	FoMO8	0.611
	FoMO9	0.692
	FoMO10	0.662
SMA	SMA1	0.625	0.847	0.481	0.844
	SMA2	0.698
	SMA3	0.710
	SMA4	0.780
	SMA5	0.730
	SMA6	0.604

CR, composite reliability; AVE, average variance extracted; COVID-19, coronavirus disease-2019; PTSD, post-traumatic stress disorder; FoMO, fear of missing out; SMA, social media addiction