This report outlines the first stage of a study of post-separation shared parenting and its developmental correlates for children. The overall study involves two separate longitudinal datasets. Part 1 (the present report) draws on the Children In Focus dataset: Waves 1, 2, 3 and 4 of a study of school aged children and parents in high levels of post-separation conflict. Part 2 utilises The Longitudinal Study of Australian Children (LSAC), Waves 1, 2 and 3, with a focus on infants and pre-school children in separated families. This current report (Part 1) outlines the findings from the Children in Focus dataset. The second research paper (Part 2) focuses solely on the LSAC infant and pre-school findings. Part 3 of the overall study is a brief paper linking the findings of the two studies.