Elective co-parenting, where parents who are not in a romantic relationship with each other decide to conceive and raise a child together is on the rise, partly facilitated by online connection sites and apps designed to help people search for parenting partners. This mixed methods study aimed to increase our understanding of family functioning and child adjustment in elective co-parenting families using interviews and standardised psychological questionnaires. Data collection for this study has ended. Publications from this study can be found in our publications section.