Fig. 2From: The relationship between loneliness and problematic social media usage in Chinese university students: a longitudinal studyCross-lagged model of loneliness and problematic social media use. Note. LS = loneliness; PSMU = problematic social media use; T1, T2, T3 = Time 1, Time 2, Time 3. * p < 0.05; ** p < 0.01; *** p < 0.001Back to article page