Previous research funded through the Department of Families, Housing, Community Services and Indigenous Affairs (FaHCSIA) Social Policy and Research Services (SPRS) program has examined family and relationship transitions in Australia. Research seeking to identify the factors associated with marital instability provides an important basis for policy development and service delivery, such as the design and development of appropriate interventions and better targeting of at-risk couples (Hewitt, Baxter & Western 2005; Wolcott & Hughes 1999). This project was conducted in 2005 to investigate the context in which relationship instability occurs, by examining the factors (at the individual, and the couple/family levels) that precede relationship dissolution within Australian families with children. This project seeks to complement the previous research conducted for FaHCSIA, focusing on our areas of expertise such as psychological and physical health and wellbeing.