Child behaviour management is crucial to successful treatment of atopic dermatitis (AD). This study tested relationships between parents' self-efficacy, outcome expectations, and self-reported task performance when caring for a child with AD. Using a crosssectional study design, a community-based convenience sample of 120 parents participated in pilot-testing of the Child Eczema Management Questionnaire - a self-administered questionnaire which appraises parents' self-efficacy, outcome expectations, and self-reported task performance when managing AD. Overall, parents' self-reported confidence and success with performing routine management tasks was greater than that for managing their child's symptoms and behaviour. There was a positive relationship between time since diagnosis and self-reported performance of routine management tasks; however, success with managing the child's symptoms and behaviour did not improve with illness duration. Longer time since diagnosis was also associated with more positive outcome expectations of performing tasks that involved others in the child's care (that is, health care professionals, or the child themselves). This study provides the foundation for further research examining relationships between child, parent, and family psychosocial variables, parent management of AD, and child health outcomes. Improved understanding of these relationships will assist health care providers to better support parents and families caring for children with AD.