Social cognitive theory provides a framework of human agency during environmental challenges, with coping self-efficacy (CSE) as an important construct underlying adaptation. We examined two alternative models involving CSE as a mediator of the association between posttraumatic stress symptoms (PTSS) and communal coping among parent-youth dyads after severe floods using Bayesian dyadic multilevel modeling. The first model included PTSS as the independent variable and communal coping as the dependent variable (disaster distress model). The independent and dependent variables were replaced for each other in the second model (communal coping model). We used data from 485 parent-youth dyads who experienced floods between 2015 and 2016 in Texas, USA. Parents of children (69% women) aged 10–19 years old, and their oldest child (53% male; Mean age = 13.75) in that age range were recruited. We assessed PTSS, CSE, and communal coping for parents and youths. Results favored the disaster distress model over the communal coping model. In the disaster distress model, results demonstrated that CSE declines as PTSS increases, predicting decreased communal coping. This mediation effect of CSE is stronger for youths compared to parents, indicating that children’s CSE is affected more by PTSS.

To prevent an intergenerational cycle of malfunction, it is crucial to understand how mothers’ exposure to traumatic war experiences contributes to their children’s vulnerability to mental health problems. This study examined the role of maternal psychopathology and mother–child emotional availability (EA) in the association between mothers’ trauma exposure and children’s mental health problems in a sample of 222 Burundian mother–child dyads living in refugee camps in Tanzania. Maternal and child EA were assessed through recorded observations of mother–child interactions. In structured clinical interviews, mothers reported on their lifetime exposure to traumatic events and their psychopathology and both mothers and fathers reported on children’s emotional and behavioral problems. Structural equation modeling showed that mothers’ higher trauma exposure was indirectly associated with higher levels of children’s mental health problems through higher levels of maternal psychopathology. Mothers’ higher trauma exposure was also directly associated with lower maternal EA in mother–child interactions, which was in turn related to higher levels of children’s mental health problems. The findings suggest that trauma exposure independently affects mothers’ mental health and their EA, which can contribute to children’s mental health problems. Interventions aiming to reduce mothers’ psychopathology and strengthen their EA may be beneficial for children’s well-being.