Understanding and Reducing Emotional Difficulties in Gaming Disorder

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This year, the investigator conducted the following studies.<Study 1: A cross-sectional association of gaming disorder with internalizing and family factors in children and youths> The investigator began analyzing the data. The association of gaming disorder with internalizing was not statistically significant but was with the Family APGAR (Family Functioning).<Study 2: A longitudinal association between gaming disorder and internalizing in youths> This year, the investigator completed the first wave of data collection. The main hypothesis is that a medium-sized association is found between gaming disorder and internalizing when measured one year apart. In total, 600 participants aged between 15 and 18 in high schools participated in the study.<Study 3: A Japanese version of the Motivation for Online Gaming Questionnaire (MOGQ)> This year, the investigator translated the original version of the scale. Two independent researchers translated the scale and harmonized them. Then, two independent individuals native to English back-translated the Japanese translation. The investigator conducted cognitive debriefing with 8 participants as a pilot study. Throughout this process, the investigator discussed the Japanese translation with authors of the original scale.