Objective 
This study was designed to investigate the revised and short version of the smartphone addiction scale and the proof of its validity in adolescents. In addition, it suggested cutting off the values by gender in order to determine smartphone addiction and elaborate the characteristics of smartphone usage in adolescents.


Method 
A set of questionnaires were provided to a total of 540 selected participants from April to May of 2013. The participants consisted of 343 boys and 197 girls, and their average age was 14.5 years old. The content validity was performed on a selection of shortened items, while an internal-consistency test was conducted for the verification of its reliability. The concurrent validity was confirmed using SAS, SAPS and KS-scale. Receiver operating characteristics analysis was conducted to suggest cut-off.


Results 
The 10 final questions were selected using content validity. The internal consistency and concurrent validity of SAS were verified with a Cronbach's alpha of 0.911. The SAS-SV was significantly correlated with the SAS, SAPS and KS-scale. The SAS-SV scores of gender (p<.001) and self-evaluation of smartphone addiction (p<.001) showed significant difference. The ROC analysis results showed an area under a curve (AUC) value of 0.963(0.888–1.000), a cut-off value of 31, sensitivity value of 0.867 and specificity value of 0.893 in boys while an AUC value of 0.947(0.887–1.000), a cut-off value of 33, sensitivity value of 0.875, and a specificity value of 0.886 in girls.


Conclusions 
The SAS-SV showed good reliability and validity for the assessment of smartphone addiction. The smartphone addiction scale short version, which was developed and validated in this study, could be used efficiently for the evaluation of smartphone addiction in community and research areas.

/pdf/the-smartphone-addiction-scale-development-and-validation-of-3fxn7vi9fe.pdf

The smartphone addiction scale: development and validation of a short version for adolescents.

https://research-information.bris.ac.uk/files/134652082/injecting.pdf

Global prevalence of injecting drug use and sociodemographic characteristics and prevalence of HIV, HBV, and HCV in people who inject drugs: a multistage systematic review

Background and aims The usage of smartphones has increased rapidly in recent years, and this has brought about addiction. The aim of the current study was to investigate the relationship between smartphone use severity and sleep quality, depression, and anxiety in university students. Methods In total, 319 university students (203 females and 116 males; mean age = 20.5 ± 2.45) were included in the study. Participants were divided into the following three groups: a smartphone non-user group (n = 71, 22.3%), a low smartphone use group (n = 121, 37.9%), and a high smartphone use group (n = 127, 39.8%). All participants were evaluated using the Pittsburgh Sleep Quality Index, Beck Depression Inventory, Beck Anxiety Inventory; moreover, participants other than those in the smartphone non-user group were also assessed with the Smartphone Addiction Scale. Results The findings revealed that the Smartphone Addiction Scale scores of females were significantly higher than those of males. Depression, anxiety, and day...

/pdf/relationship-of-smartphone-use-severity-with-sleep-quality-1s0qezj206.pdf

Relationship of smartphone use severity with sleep quality, depression, and anxiety in university students.

Problematic smartphone use: A conceptual overview and systematic review of relations with anxiety and depression psychopathology.

Relationships among smartphone addiction, stress, academic performance, and satisfaction with life

Objective
The aim of this study was to develop a self-diagnostic scale that could distinguish smartphone addicts based on the Korean self-diagnostic program for Internet addiction (K-scale) and the smartphone's own features. In addition, the reliability and validity of the smartphone addiction scale (SAS) was demonstrated.

/pdf/development-and-validation-of-a-smartphone-addiction-scale-4r6ooruk7y.pdf

Development and validation of a Smartphone Addiction Scale (SAS).

Background and AimsSmartphone addiction, its association with smartphone use, and its predictors have not yet been studied in a European sample. This study investigated indicators of smartphone use, smartphone addiction, and their associations with demographic and health behaviour-related variables in young people.MethodsA convenience sample of 1,519 students from 127 Swiss vocational school classes participated in a survey assessing demographic and health-related characteristics as well as indicators of smartphone use and addiction. Smartphone addiction was assessed using a short version of the Smartphone Addiction Scale for Adolescents (SAS-SV). Logistic regression analyses were conducted to investigate demographic and health-related predictors of smartphone addiction.ResultsSmartphone addiction occurred in 256 (16.9%) of the 1,519 students. Longer duration of smartphone use on a typical day, a shorter time period until first smartphone use in the morning, and reporting that social networking was the mo...

/pdf/smartphone-use-and-smartphone-addiction-among-young-people-2ksjv1vvl0.pdf

Smartphone use and smartphone addiction among young people in Switzerland

Development of the Internet addiction scale based on the Internet Gaming Disorder criteria suggested in DSM-5.

Su Mi Kim, MD, Hyu Jung Huh, MD, Hyun Cho, Min Kwon, Ji Hye Choi, Hee June Ahn, PhD, Sun Woo Lee, Yeon Ji Kim, and Dai Jin Kim, MD 1 Department of Psychiatry, Yeouido St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea 2 Department of Psychiatry, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea 3 Addiction Research Institute, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea 4 Department of Electrical and Information Engineering, Seoul National University of Science and Technology, Seoul, Korea College of Medicine, The Catholic University of Korea, Seoul, Korea

/pdf/the-effect-of-depression-impulsivity-and-resilience-on-xfoc9weuws.pdf

Min Kwon

Papers

The smartphone addiction scale: development and validation of a short version for adolescents.

Development and validation of a Smartphone Addiction Scale (SAS).

Smartphone use and smartphone addiction among young people in Switzerland

Development of the Internet addiction scale based on the Internet Gaming Disorder criteria suggested in DSM-5.

The Effect of Depression, Impulsivity, and Resilience on Smartphone Addiction in University Students