Mother–adolescent communication and father–adolescent communication: Analyzing a 4‐week family intervention using multi‐informant data

Abstract Families manage daily conflict through communication and healthy family communication is critical to promoting better family relationships and youth adjustment. Community families without high‐risk factors, such as domestic dispute or clinical problems, are no less affected by the ramifications of poor communication and conflict management. However, there is limited translational research on community families analyzing the changes in parent–adolescent communication quality. This study aimed to test whether a brief 4‐week family conflict intervention improved openness and problems in mother–adolescent (MA) and father–adolescent (DA) communication and whether mothers, fathers, and adolescents experienced the intervention effects differently. A total of 225 community families with adolescents were randomly assigned to either a parent–adolescent treatment condition (PA: n = 75), parent‐only treatment condition (PO: n = 75), or control condition ( n = 75). Mother, father, and adolescent reports on parent–adolescent communication were analyzed from pretest through a 3‐year follow‐up assessment, over five waves. ANCOVA results indicated significant intervention effects at posttest for mother‐reported openness in MA communication, youth‐reported openness in DA communication, and father‐reported problems in DA communication, for PA condition. No significant intervention effects were found for PO condition. Exploratory trajectory analysis revealed the necessity of testing both linear and nonlinear models to be able to best illustrate the 3‐year change trajectories of parent–adolescent communication quality. Resulting trajectories revealed interesting variations in longitudinal changes across three intervention conditions. The findings highlight the importance of involving fathers and adolescents in family intervention programs and the necessity of multi‐informant assessment to better clarify the interplay among different family members behind the intervention effects.