Couple-Focused Prevention at the Transition to Parenthood, a Randomized Trial: Effects on Coparenting, Parenting, Family Violence, and Parent and Child Adjustment

OBJECTIVE: This study reports the psychometric properties of a multi-domain measure of the coparenting relationship in dual-parent families. METHOD: 152 couples participating in a transition to parenthood study completed the Coparenting Relationship Scale and additional measures during home visits at child age 6 months, 1 year, and 3 years. RESULTS: Psychometric and construct validity assessments indicated the measure performed satisfactorily. The 35-item measure demonstrated good reliability and strong stability. Subscales measuring theoretically and empirically important aspects of coparenting (coparenting agreement, coparenting closeness, exposure of child to conflict, coparenting support, coparenting undermining, endorsement of partner's parenting, and division of labor) demonstrated good reliability as well. A 14-item brief overall measure showed very strong associations with the overall measure. Relations of the full scale with a measure of social desirability were weak, and the full scale was positively associated with positive dimensions of the dyadic couple relationship (love, sex/romance, couple efficacy) and inversely associated with negative dimensions (conflict, ineffective arguing)-as expected. CONCLUSIONS: This initial examination of the Coparenting Relationship Scale suggests that it possesses good psychometric properties (reliability, stability, construct validity, and inter-rater agreement), can be flexibly administered in short and long forms, and is positioned to promote further conceptual and methodological progress in the study of coparenting.