The aim of the Linking Schools and Early Years Project (LSEY) is to ensure that all children enter the formal education system ready to engage with the many opportunities offered by their new learning environment. The project also aims to ensure that schools are prepared for children of all abilities and backgrounds when they first attend, and that families, services and communities are ready to support the development of children. The rationale for the project comes from research showing the importance of a holistic, multi-dimensional approach to transition, encompassing schools, early education and care, families and communities. This is the fourth evaluation report, and covers the third full round of data collection. An interim report was published in 2011, describing significant developments between the 2010 round and this report. For this report, quantitative and qualitative data collection methods were used. Quantitative data were collected using a series of questionnaires: a parent questionnaire, a schools questionnaire, an early years/early education and care services questionnaire, and a child and family services questionnaire. Qualitative data were provided through face-to-face individual and group interviews. The LSEY outcomes framework translates the research evidence on transition into three goals. The outcomes and implementation findings for this and previous reports are organised around these goals. A number of implementation strategies were effective across each of the goals, and we describe strengths of the model and barriers to implementation. (author abstract)