Introduction Despite the many benefits of smartphones, researchers have raised concerns over problematic smartphone use (PSU) and its negative effects on physical and psychological well-being. Studies
Parameter estimate (β), standard error (SE), Wald statistics (Wald), degrees of freedom (df), level of significance (p), cumulative odds ratio (Exp (β)) and 95% confidence interval of the cumulative o
sj-inp-3-hpq-10.1177_13591053211021651 for Decreased COVID-related adaptive behavior and increased negative affect: A multivariate latent growth curve model by Hai-Ping Liao, Xiao-Fu Pan, Xue-Qin Yin,