CRC/C/GC/7/Rev.1 page 19 services, infrastructure and overall resources specifically allocated to early childhood, for the many reasons set out in this general comment. In this connection, States parties are encouraged to develop strong and equitable partnerships between the Government, public services, non-governmental organizations, the private sector and families to finance comprehensive services in support of young children’s rights. Finally, the Committee emphasizes that where services are decentralized, this should not be to the disadvantage of young children. 39. Data collection and management. The Committee reiterates the importance of comprehensive and up-to-date quantitative and qualitative data on all aspects of early childhood for the formulation, monitoring and evaluation of progress achieved, and for assessment of the impact of policies. The Committee is aware that many States parties lack adequate national data collection systems on early childhood for many areas covered by the Convention, and in particular that specific and disaggregated information on children in the early years is not readily available. The Committee urges all States parties to develop a system of data collection and indicators consistent with the Convention and disaggregated by gender, age, family structure, urban and rural residence, and other relevant categories. This system should cover all children up to the age of 18 years, with specific emphasis on early childhood, particularly children belonging to vulnerable groups. 40. Capacity-building for research in early childhood. The Committee noted earlier in this general comment that extensive research has been carried out on aspects of children’s health, growth, and cognitive, social and cultural development, on the influence of both positive and negative factors on their well-being, and on the potential impact of early childhood care and education programmes. Increasingly, research is also being carried out on early childhood from a human rights perspective, notably on ways that children’s participatory rights can be respected, including through their participation in the research process. Theory and evidence from early childhood research has a great deal to offer in the development of policies and practices, as well as in the monitoring and evaluation of initiatives and the education and training of all responsible for the well-being of young children. But the Committee also draws attention to the limitations of current research, through its focus mainly on early childhood in a limited range of contexts and regions of the world. As part of planning for early childhood, the Committee encourages States parties to develop national and local capacities for early childhood research, especially from a rights-based perspective. 41. Training for rights in early childhood. Knowledge and expertise about early childhood are not static but change over time. This is due variously to social trends impacting on the lives of young children, their parents and other caregivers, changing policies and priorities for their care and education, innovations in childcare, curricula and pedagogy, as well as the emergence of new research. Implementing child rights in early childhood sets challenges for all those responsible for children, as well as for children themselves as they gain an understanding of their role in their families, schools and communities. States parties are encouraged to undertake systematic child rights training for children and their parents, as well as for all professionals working for and with children, in particular parliamentarians, judges, magistrates, lawyers, law enforcement officials, civil servants, personnel in institutions and places of detention for children, teachers, health personnel, social workers and local leaders. Furthermore, the Committee urges States parties to conduct awareness-raising campaigns for the public at large.