Online gaming has greatly increased in popularity in recent years, and with this has come a multiplicity of problems due to excessive involvement in gaming. Gaming disorder, both online and offline, has been defined for the first time in the draft of 11th revision of the International Classification of Diseases (ICD-11). National surveys have shown prevalence rates of gaming disorder/addiction of 10%–15% among young people in several Asian countries and of 1%–10% in their counterparts in some Western countries. Several diseases related to excessive gaming are now recognized, and clinics are being established to respond to individual, family, and community concerns, but many cases remain hidden. Gaming disorder shares many features with addictions due to psychoactive substances and with gambling disorder, and functional neuroimaging shows that similar areas of the brain are activated. Governments and health agencies worldwide are seeking for the effects of online gaming to be addressed, and for preventive ...

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 latest (fifth) edition of the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders (DSM-5) included nine criteria for the potential diagnosis of Internet Gaming Disorder (IGD) and noted that it was a condition that warranted further empirical study. Aim: The main aim of this study was to develop a valid and reliable standardised psychometrically robust tool in addition to providing empirically supported cut-off points. A sample of 1003 gamers (85.2% males; mean age 26 years) from 57 different countries were recruited via online gaming forums. Validity was assessed by confirmatory factor analysis (CFA), criterion-related validity, and concurrent validity. Latent profile analysis was also carried to distinguish disordered gamers from non-disordered gamers. Sensitivity and specificity analyses were performed to determine an empirical cut-off for the test. The CFA confirmed the viability of IGD-20 Test with a six-factor structure (salience, mood modification, tolerance, withdrawal, conflict and relapse) for the assessment of IGD according to the nine criteria from DSM-5. The IGD-20 Test proved to be valid and reliable. According to the latent profile analysis, 5.3% of the total participants were classed as disordered gamers. Additionally, an optimal empirical cut-off of 71 points (out of 100) seemed to be adequate according to the sensitivity and specificity analyses carried. The present findings support the viability of the IGD-20 Test as an adequate standardised psychometrically robust tool for assessing internet gaming disorder. Consequently, the new instrument represents the first step towards unification and consensus in the field of gaming studies.

Purpose: – Organizational identification refers to a person’s sense of belonging within the organization in which they work. Despite the importance of organizational identification for work-related attitudes and organizational behavior, little research has directly examined the mechanisms that may link these. The purpose of this paper is to provide an understanding of how organizational identification relates to job satisfaction.Design/methodology/approach: – Adopting a social identity perspective, the authors present and test two models that describe work engagement and its constituent dimensions (vigor, dedication, absorption) as mediating the relationship between organizational identification and job satisfaction.Findings: – Bootstrapped mediation analyses provided support for full mediation whereby there is an indirect (via work engagement) and positive effect of organizational identification on job satisfaction. Analyses also provided support for the mediating effects of the three dimensions of work engagement, vigor, dedication, and absorption, in this relationship.Practical implications: – Although cross-sectional, this study provides a needed first step toward an understanding of the important role of organizational identification for job satisfaction and the mediating role of work engagement in this relationship.Originality/value: – The results provide valuable insights into the effects of organizational identification and address some of the gaps in understanding social identity as the context for work behaviors. Theoretical and practical implications for strengthening employee engagement and enhancing organizational identification are discussed.