“…Most children manifest low-to-moderate decreasing levels of IA, but a group of them manifest high or increasing levels of IA (Boutin et al, 2017, 2021; Chen et al, 2019; Pagani et al, 2010; Vaillancourt et al, 2007), and this high use can persist into adulthood (Coyne et al, 2020; Vaillancourt & Farrell, 2021). Even if the latter are in minority, in addition to causing considerable harm to others (Casper & Card, 2017), these high users of IA are at elevated risk for future detrimental outcomes, such as anxiety, depression, delinquency, drug use, and risky sexual behaviors (Boutin et al, 2018; Card et al, 2008; Chen et al, 2019; Cleverley et al, 2012; Ehrenreich et al, 2016). These risks were found even after controlling for direct forms of aggression, like physical aggression.…”