https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Psychometric properties and demographic correlates of the smartphone addiction scale - short version among Chinese children and adolescents in Hong Kong https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46476 n = 951), while confirmatory factor analysis (CFA) was used to assess the goodness-of-fit of EFA models for the remaining half (n = 951). Spearman correlations were used to assess the convergent validity of the SAS-SV, taking account of time spent by subjects on phones per day, the Smart Device Addiction Screening Tool (SDAST), the Pittsburgh Sleep Quality Index (PSQI), the Multidimensional Scale of Perceived Social Support (MSPSS), and the Center for Epidemiological Studies Depression Scale for Children (CES-DC). EFA generated a three-factor model (with factors labeled “dependency,” the incidence of a “problem,” and “time spent”). CFA confirmed this model yielded an acceptable goodness-of-fit (Comparative Fit Index = 0.96, Tucker Lewis Index = 0.95, and root-mean-square error of approximation = 0.06). SAS-SV was positively correlated with SDAST (ρ = 0.59), PSQI (ρ = 0.29), and CES-D (ρ = 0.35), and negatively correlated with MSPSS (ρ = −0.10). A linear regression model showed that female adolescents, those with highly educated caregivers and those who spent more time using smartphones on their holidays, had on average higher SAS-SV scores, meaning they showed greater vulnerability to becoming addicted. The study found that SAS-SV is a valid scale for estimating excessive smartphone use among Hong Kong children and adolescents.]]> Thu 24 Nov 2022 08:29:24 AEDT ]]> Association between time spent on smart devices and change in refractive error: a 1-year prospective observational study among Hong Kong children and adolescents https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38397 Mon 06 Sep 2021 12:22:40 AEST ]]> Bedtime smart device usage and accelerometer-measured sleep outcomes in children and adolescents https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:49178 Fri 05 May 2023 15:45:05 AEST ]]>