Table 3.

Discriminant validity (N=856)

Variable	Mean±SD	1	2	3
1. COVID-19-related PTSD	1.827±0.686	0.707**
2. FoMO	1.889±0.748	0.474*	0.698**
3. SMA	2.223±0.764	0.369*	0.409*	0.694**

^*p<0.001;

^**the square root of the AVE.

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