Previous studies showed that psychological and physical aggression between parents is related to more aggression between siblings and child behavioural problems. In addition, other studies showed...Show morePrevious studies showed that psychological and physical aggression between parents is related to more aggression between siblings and child behavioural problems. In addition, other studies showed that child behavioural problems is related to more aggression between siblings. This study aims to investigate the relation between psychological and physical aggression between parents and aggression between siblings and whether this is mediated by child behavioural problems. A total of 32 families participated in this study, both parents and two adolescent siblings between the ages of 10 and 18 filled in online questionnaires. To assess the aggression between adolescent siblings, an adapted version of the Sibling Version of the Conflict Tactics Scale (CTS2-SP) was used. The Conflict Tactics Scale (CTS) was used to assess the level of psychological and physical aggression between parents and the Child Behaviour Checklist (CBCL) was used to assess behavioural problems of both adolescent siblings. The Baron and Kenny method (1986) was used to conduct the mediation analysis. This showed that there was no indirect effect of psychological and physical aggression between parents and aggression between adolescent siblings through behavioural problems. There was however a positive relation between psychological and physical aggression between parents with child behavioural problems of both adolescent siblings and between child behavioural problems of both adolescent siblings with aggression between siblings. This study contributes to the knowledge of which factors can contribute to aggression between siblings.Show less
