Although the co-occurrence between adolescent depression and delinquency has been well-studied, the nature of the longitudinal associations is not yet clear. To clarify this we examined whether personality type is a moderator in the longitudinal co-occurrence of depression and delinquency. A total of 338 young and middle adolescents completed questionnaires about depression, delinquency and personality in 3 yearly waves of the CONflict And Management Of RElationships (CONAMORE). We found that the stable overcontrollers showed the highest mean level on depression and that the stable undercontrollers showed the highest mean level on delinquency. Furthermore, we demonstrated that the longitudinal co-occurrence between depression and delinquency was best described by means of a stability model, in which personality type membership proved to be an important moderator. The three personality types differed significantly on the rank-order stability of both depression and delinquency.

This 6-year longitudinal study examined the relation between 3 conflict management styles (i.e., problem solving, conflict engagement, and compliance) and depressive symptoms in adolescent-best friend relationships. Participants were 479 Dutch adolescents and their best friend who reported annually on depressive symptoms and conflict management styles toward each other. Bidirectional effects between conflict management styles and depressive symptoms were studied both within adolescents (intraindividual) and between adolescent best friends (interpersonal). A positive interpersonal effect of depressive symptoms of one dyad member on depressive symptoms of the other member was found. Similarly, higher positive problem solving and conflict engagement of one dyad member predicted respectively higher problem solving and conflict engagement of the other dyad member. Adolescents who reported more depressive symptoms reported more conflict engagement and compliance over time. In addition, for boys, higher levels of depressive symptoms of one dyad member were related to more problem solving by the other member over time. The current study contributed to the literature by showing that depressive symptoms and conflict management are related constructs in adolescents and that both intrapersonal and interpersonal processes contribute to this relation.

Het reguleren van de grenzen van privacy tussen jongeren en ouders is moeilijk, aangezien jongeren steeds trachten de grenzen van hun privédomein te verruimen. Als jongeren het idee hebben dat hun ouders de privacygrenzen overtreden kan dit leiden tot conflicten, maar een hoger niveau van conflicten zou er ook aan kunnen bijdragen dat jongeren een toenemend gevoel hebben van privacyschending. Deze multi-informant longitudinale studie (N = 309) onderzocht relaties tussen percepties van privacyschending en het niveau van ouder-kindconflict in de adolescentie. Bidirectionele relaties werden aangetoond. Privacyschending voorspelde hogere niveaus van ouder-kindconflict over tijd, en conflicten voorspelden ook gevoelens van privacyschending. De richting van deze effecten varieerde tussen de metingen en de verschillende informanten voor ouderkindconflict (vader, moeder, of kind). Bevindingen worden bediscussieerd vanuit het idee dat er mogelijk een functionele rol is voor conflicten in de ouder-kindrelatie, omdat het aandacht kan vestigen op het overtreden van privacy grenzen, maar dat conflicten niet erg effectief zijn in het reduceren van toekomstige gevoelens van privacyschending.