Children's oppositional defiant disorder symptoms make parents difficult to be nice: Longitudinal association among parent emotion regulation, child emotion regulation and children's oppositional defiant disorder symptoms in Chinese children with oppositional defiant disorder.

The current study aims to clarify the longitudinal relations among parent emotion regulation (ER), child ER, and children's oppositional defiant disorder (ODD) symptoms. In the current study, parents of 275 children (195 boys, 70.1%) with ODD symptoms (Mage = 9.32 years, SD = 1.64) reported their ER using the Difficulties in Emotion Regulation Scale, child ERs using the Emotion Regulation Checklist, and children's ODD symptoms using the eight symptoms indicated in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR) at three time points (T1, T2, and T3) within 2 years. Results indicated the longitudinal relationships between parent ER and children's ODD symptoms were directly influenced by each other. Children's ODD symptoms had important effects on both child ER and parent ER. Findings suggested that to reduce children's ODD symptoms, it is necessary not only to improve child ER but also to improve parent ER.