Statistical analysis
Given that the distribution of the variables was not Gaussian, differences between exam scores in Controls versus Gamers and versus Users were analysed using a Mann-Whitney U test. A significant difference was defined by a p value < 0.05. Correlation analysis between assiduity to Chatprogress and exam scores among Gamers and Users was performed using Spearman rank correlation non-parametric testAll statistical tests were performed using the Prism Software.