Fig. 2From: Association between problematic social media use and memory performance in a sample of Lebanese adults: the mediating effect of anxiety, depression, stress and insomniaStructural equation model in adult population. —observed variable; —latent variable; —impact of one variable on another; e—residual error in the prediction of an unobserved factor; * p < 0.001. Numbers without a * indicate non-significant associations. The values of standardized coefficients are presentedBack to article page