• Publications
  • Influence
Problematic Social Media Use: Results from a Large-Scale Nationally Representative Adolescent Sample
Despite social media use being one of the most popular activities among adolescents, prevalence estimates among teenage samples of social media (problematic) use are lacking in the field. The presentExpand
The relationship between addictive use of social media and video games and symptoms of psychiatric disorders: A large-scale cross-sectional study.
Over the last decade, research into "addictive technological behaviors" has substantially increased. Research has also demonstrated strong associations between addictive use of technology andExpand
Mephedrone (4-methylmethcathinone; ‘meow meow’): chemical, pharmacological and clinical issues
BackgroundRecently, those substances deriving from the active ingredient of the Khat plant, cathinone, have been rising in popularity. Indeed, 4-methylmethcathinone (mephedrone; ‘meow meow’ andExpand
Exercise Addiction: Symptoms, Diagnosis, Epidemiology, and Etiology
Regular physical activity plays a crucial role in health maintenance and disease prevention. However, excessive exercise has the potential to have adverse effects on both physical and mental health.Expand
The Conceptualisation and Measurement of DSM-5 Internet Gaming Disorder: The Development of the IGD-20 Test
Background Over the last decade, there has been growing concern about ‘gaming addiction’ and its widely documented detrimental impacts on a minority of individuals that play excessively. The latestExpand
Why do you play? The development of the motives for online gaming questionnaire (MOGQ)
We identified seven motivational factors (social, escape, competition, coping, skill development, fantasy, and recreation), which were used to develop the 27-item Motives for Online Gaming Questionnaire. Expand
The three-factor model of Internet addiction: The development of the Problematic Internet Use Questionnaire
Despite the fact that more and more clinical case studies and research reports have been published on the increasing problem of Internet addiction, no generally accepted standardized tool isExpand
Psychometric properties and concurrent validity of two exercise addiction measures: A population wide study
Abstract Objectives The existence of exercise addiction has been examined in numerous studies. However, none of the measures developed for exercise addiction assessment have been validated onExpand
The Development of the Problematic Online Gaming Questionnaire (POGQ)
Background Online gaming has become increasingly popular. However, this has led to concerns that these games might induce serious problems and/or lead to dependence for a minority of players. Aim:Expand
Emotional Intelligence and Addictions: A Systematic Review
Since the millennium, an expanding number of research articles have examined the relationship between emotional intelligence (EI) and physical and mental health. The relationship between EI andExpand