“…Externalizing difficulties are usually related to the presence of aggressive, disruptive and acting-out behaviors [ 48 , 49 ]. Externalizing problems are closely associated with bullying engagement [ 17 , 50 ], and disruptive and antisocial behaviors, such as alcohol and substance abuse, which are commonly observed among bullies [ 15 , 33 , 60 , 61 ]. Adolescents with externalizing problems are more likely to experiencing difficulties in reading social cues and responding to complex interactions, which can explain their increased engagement in bullying [ 21 , 31 , 35 , 36 , 37 , 62 ].…”