Richness or rigour? A discussion of systematic reviews and evidence-based policy in early childhood

In this article, the authors report on the experiences of the Early Years Review Group, one of a number of education groups contracted to carry out systematic reviews for the Evidence for Policy and Practice Information and Coordinating (EPPI) Centre in the United Kingdom. The Early Years Review Group has carried out three systematic reviews: one on the impact of integration of care and education in the early years; one on providing support to young children affected by war and armed conflict; and one on the long-term cost benefits of early childhood interventions. Using the evidence from the third review, the authors address the issue of what constitutes useful evidence for policy makers in the field of early childhood and whether certain kinds of evidence are privileged. They conclude that the systematic review process is an independent and useful tool for analysing and critiquing existing studies.