“…Although a relatively high number of standardized assessment tools to assess IGD have been recently developed, the IGDS9-SF, which was developed to be utilized in large-scale surveys, has been extensively utilized in several countries and employed in a number of research studies given its excellent psychometric properties and conciseness to assess IGD in time-limited research. More specifically, the IGDS9-SF has been developed and adapted to different languages, such as: English (Pontes and Griffiths, 2015 ;Pontes et al, 2017), Slovenian , Portuguese , Italian (Monacis et al, 2016), and Persian (Wu et al, 2017). Although these international studies utilizing the IGDS9-SF have not directly estimated mean scores of IGD across different populations investigated due to their exclusive psychometric focus, these studies have provided key insights on the diagnosis and measurement of IGD.…”