CD with onset in adolescenceThe onset of symptoms coincides with the onset of adolescence. This group tends to be less aggressive and is less likely to continue to exhibit the behavior into adulthood (Frick, 2012; Frick & Vidin, 2009; Moffitt, 2006). The adolescent-onset group is also less likely to exhibit neuropsychological deficits (such as executive function deficits), personality risk factors (such as impulsivity and emotional regulation), and cognitive deficits (such as low intelligence) (Frick, 2012; Moffitt, 2006) . However, compared to other types of DC, this group tends to reject conventional values ​​and status hierarchies more and shows greater rebellion (Dandreaux & Frick, 2009). Many have proposed that the adolescent-onset type of CD can be viewed as an exaggeration of normal adolescent development (Moffitt, 2006), as some level of rebellious behavior is normative in the adolescent years. However, individuals with adolescent-onset CD are likely to exhibit more severe and disabling rebellion than normal, due to a number of factors. These factors include; poor parental supervision, deviant peer groups, lack of respect for institutions, and some personality traits (such as those characterized by a rejection of traditional status) (Dandreaux & Frick, 2009). CD with CU Traits One type of CD - called "CD-CU" ' is characterized by onset in early childhood and the presence of callous-unemotional (CU) traits, such as; a lack of guilt, lack of concern for the feelings of others, no concern for one's own performance, and a lack of meaningful emotional expression (Frick, 2012; Patrick, 2006). These traits have been compared to those of adult psychopathy (Hare & Neumann, 2006). Children with this type of... half of card... d for the lack of "conscience", since these children are aware that their actions are undesirable and often show remorse. Research has shown that these children are likely to have had poor upbringings, with hostile and inconsistent parenting practices. Based on the characteristics of the CD-EBD group, it appears that their behavior is linked to deficits in the cognitive and/or emotional regulation of behavior combined with negative family experiences (Frick & Viding, 2009). Deficits in verbal skills combined with inadequate socialization experiences are likely to result in difficulties in the executive control of behavior (such as the inability to anticipate negative consequences of behavior). Furthermore, the emotional characteristics of the disorder coupled with negative parenting could offer an explanation for problems regulating emotional responses.