Adolescent-Reported Interparental Conflict and Related Emotional–Behavioral Difficulties: The Mediating Role of Psychological Inflexibility

Background/Objectives: Interparental conflict, with its multiple dimensions, represents a risk factor for youth mental health, triggering a series of cascading processes. Despite recent evidence highlighting that psychological inflexibility is a risk factor for adolescents’ psychopathology after stressful events, a limited number of studies have investigated its role in family conflicts. This study aims to investigate whether psychological inflexibility mediates the impact of conflict characteristics (intensity, frequency, and resolution) and threat appraisal of interparental conflict on the psychological difficulties of adolescent offspring. Methods: A sample of 195 adolescents aged between 15 and 19 years old completed the Children’s Perception of Interparental Conflict Scale, the Strengths and Difficulties Questionnaire, and the Avoidance and Fusion Questionnaire for Youth on Google Forms. Results: The findings revealed that adolescents living in a family environment characterized by high levels of perceived interparental conflicts exhibit a wide spectrum of psychological difficulties, either emotional or behavioral, partially mediated by their psychological inflexibility. However, when conflict between parents is interpreted as threatening, adolescents’ inflexibility appears to mediate the relationship between conflict and psychological difficulties. Conclusions: While future studies are needed to better understand this association, psychological flexibility might represent a relevant treatment target in adolescents exposed to interparental conflict.