In 1994, the first year of data collection, the sample included 22,831 children aged 0 to 11. This is a comprehensive survey, looking at child development in a holistic way. It examines a variety of factors thought to influence child growth and development. Questions are designed to uncover the results of interactions that occur throughout the child's development and socialization, such as the impact of family structure and socio-economic status. Environmental factors are also important to understand the kind of resources that are available to the family and the child.
Child development is a complex process.
Many key people, such as parents, teachers, child care providers and friends, are involved in a child's life. Thus, both objective and subjective data are collected from different sources including the child. The maturity of the child is also taken into consideration, and age-appropriate measures and collection methods are used. Statistics Canada is responsible for data collection, while HRDC, the major funder, directs and disseminates research. HRDC and Statistics Canada benefit from the advice and input of a variety of other interested partners, and the experience of international studies.